FCC ID: 2ALGR-YV70 cell phone signal booster

CONTENTS 1. TheRepeaterSystem. .......................................................................... 1 2. PackageContents. ............................................................................. 2 3. Installation. ......................................................................................... 3 3.1. InstallationLocationRequirement. ................................................. 13 3.2. Installation ofOutdoorAntenna. ..................................................... 14 3.3. Cable Layout and ConnectorAssembly ......................................... 16 3.4. Switch on the Power ..................................................................... 17 3.5. Check Coverage. ......................................................................... 17 4. Attention. .......................................................................................... 19 5.Troubleshooting.................................................................................... 21 6.Safety Reminder& Warning. ............................................................... 23 7.Warranty..............................................................................................24 Introduction:

The booster is designed to realize the wireless forwarding and bidirectional amplifying of the base stations signal, expand the coverage of communication signal and cover its blind zone. When booster is working, the outside antenna

(connecting to the OUTDOOR or BTS Port of booster) will receive the cell signal from signal tower and send the signal to the booster through coaxial cable;

then the booster amplifies the signal and send the boosted signal to the inside antenna (connecting to the INDOOR or MS Port of booster); finally, the inside antenna could transmit the signal into your house. The cell phone signal booster will only make a weak signal stronger, it can't create a signal. It won't work if the outdoor antenna can't receive any signal. The outdoor antenna should receive 2-3 bars of stable signal in the location where the outdoor antenna is fixed; otherwise, the booster won't work very well. 1 1.SignalBooster 2.IndoorAntenna 3.OutdoorAntenna 4.50 feet CoaxialCable 5.PowerAdapter 6.UserManual 7.Screws Accessories You should receive the Mobile Booster kit which includes the similar above-mentioned fittings.Before installing, please confirm your purchased boosters frequency is corresponding with your cell phone frequency; if not corresponding, the booster would not amplify any signal. Commonly-used operators frequency is as follows:

Band 2 4 5 12 13 17 Uplink (UL) Downlink (DL) UL_low UL_high DL_low DL_high 1850 MHz 1910 MHz 1930 MHz 1990 MHz 1710MHz 1755 MHz 2110MHz 2155 MHz 824MHz 849 MHz 869 MHz 894MHz 698 MHz 716 MHz 729 MHz 746 MHz 776MHz 787MHz 746MHz 757MHz 704MHz 716MHz 734MHz 746 MHz 2 Step 1: Connect Inside Antenna To Booster Option AMount the Whip Antenna Installation Steps:

1.Connect the whip antenna to the Booster INDOOR port. 2.Gently rotate the whip antenna, place Inside Antenna in weak signal area. Note:

1. The whip antenna is suitable to be installed in small room or apartment. 2.The whip antenna should be oriented vertically whether you choose to mount the booster on a wall or set on a table. 3 Option BMount the Indoor Ceiling Antenna Installation Steps:

30mm maximum. 1. Drill a 20mm diameter hole in the ceiling. The ceiling thickness should be 2. Unscrew fixing nut from the antenna. Place antenna cable through the hole. Screw the fixing nut back onto the antenna, and go through the cable from the crawl space side of the ceiling and fasten. 3. Attach the connection from the indoor antenna to the connector labeled INDOOR on your booster. 4. Tighten fixing nut to secure antenna (do not over-tighten). Note:The Ceiling Antenna is suitable for central locations with 360-degree coverage, please mount it on the ceiling in a central location. 4 Option CMount the Indoor Panel Antenna Installation Steps:

1. Using the plate mark the position of desired screw placement. 2. Screw mounting plate into place with the slide protruding towards up. 3. Hang the antenna securely onto the mounting plate. 4. Connect the antenna short cable to the 15ft cable and run to the planned location of your booster. 5. Place the booster on a flat surface or mounted to a wall and connect the remaining end of the cable to booster port marked INDOOR. Note:

1. The Inside Panel Antenna should be facing the area signal is needed and away from the outdoor antenna (See Aiming Panel Antenna below). 5 2.The installation location is the approximate height of normal cell phone use. 3. The Inside Panel Antenna is directional with a 180-degree reach, it should be mounted on a vertical surface or wall where there are no materials that could obstruct signals. 4. It is better to use a directional panel antenna when the shape of coverage is longand narrow (corridors, long row of houses in tow sides, tunnels, elevators or rural open space). 5. Do not connect booster to power until the system is fully installed. 6 Step 2 : Install the Outdoor Antenna The directional Yagi, Panel or LPDA Antenna should be mounted at the highest possible location above the roof line at least 25 feet above the indoor antenna aimed in the direction of your nearest carriers cell tower. To find the location of your closest carriers cell tower, go to www.antennasearch.com. Ensure that the mounting area has at least a 12 inches radius clear of obstructions, other radiating elements and metal objects such as pipes or metal siding. Once you have identified your install location, assemble the u-bolt, bracket, nuts and washers onto a pole

(available separately) as shown in the illustration. Keep the connections loose enough to allow the antenna to rotate until the optimum direction is found. Run the cable along route to planned location of your booster. Option A: Mount the Directional Outdoor Panel Antenna Find a best signal place at a high location outdoor. Installation Steps:

1. Attach the L-Bracket to the Outside Panel Antenna and use the U-

Bolts/Pole Bracket to attach the L-Bracket to a pole. Let the peak of Panel antenna pointed to the cell tower. 7 Option B: Mount the Directional Outdoor LPDA Antenna Installation steps:

1. A drill hole at the LPDA antenna bottom , and the drill hole should be face the bottom side. 2. Fix the LPDA antenna on a long pole/mast/tube with U-bolt and Brackets, tighten the the L-bracket with each washers nuts . 3. Fix the LPDA antenna at the L-bracket with screws 4. Let the peak of LPDA antenna pointed to the cell tower . Option C: Mount the Directional Outdoor YagiAntenna Installation Steps:

1. Fix the Yagi antenna on a long pole/mast/tube with 2 U-bolt s, tighten them with each washers nuts . 2. Let the peak of Yagi antenna pointed to the cell tower . 8 Option D:Mount the Omni-directional Antenna Installation Steps:

1.Assemble the u-bolt, bracket, nuts and washers onto a mast (not provided) as shown in the illustration. 2.Connect one end of the provided coax cable to the antenna and tighten the connection. Note:

1.The Omni Antenna receives and sends signals in a 360-degree radius. Mount the antenna at the highest possible elevation and in an upright position. 2.Ensure that the entire outside antenna is above the roof line of the building and is at least 12 inches away from any metal obstructions and other radiating elements. 3.The minimum distance between outdoor antenna and indoor antenna shall be more than 39ft; and the direction of outdoor and indoor antennas shall be opposite. 9 Step 3: Route & Connect Cable To System Connect the white 50ft Coaxial Cable to the Outdoor Antenna and route cable into the home. All connections should be hand tightened only 10 Note: The connector need to add waterproof tape Step 4: Power Up The Booster & OptimizeThe System 11 12 Plug the Power Supply into wall outlet then connect to Booster.The minimum distance between outdoor antenna and indoor antenna shall be more than 39ft, again. Therepeatersshouldbeusedtocovertheindoorarea.Humidityandtemperatureofworking environmentcanaffectthereliabilityofrepeater.so,temperature,humidity,dust,interference,p ower,spacerequirementsandotherfactorsshouldbeconsideredduringinstallationof repeater. 3.1 Installation LocationRequirement 1 It is important that the repeater is installed in a place where is away from excessive heat, direct sunlight, moisture and with proper ventilation. Do not place the repeater in an air-tightenclosure. 2 Installation height should be easy for RF cable wiring, heat dissipation, security and maintenance. 3 There should be an independent and stable powersupply. 4 Lightning protection is recommended for all in-building installations. Take extreme care to ensure neither you nor the antenna come in contact with any electrical power lines.stability. 13 3.2 Installation of Outdoorantenna The repeaters main function is improve weak RF signals of an area. A simple formula:

Input power+ Gain=output power. The signal strength from the outdoor antenna directly affects the efficiency of the indoor coverage. it is very important to choose the outdoor antenna location in order to get the best signals. Testing the signal strength received from outdoor antenna by mobile phone:

Select an outside antenna location on the roof of the building to install the outdoor antenna, using a cell phone to find the strongest signal from the celltower. The phone calls or data transmission shall be smooth and stable by 3 times testing in location Fix the outdoor antenna after selecting the best position, and adjust height or angles slightly in order to get the best signal with suitable input power level and calling quality.

TestthecallqualityofOutdoorantenna(forprofessionalinstallationteamonly

14 Selecting the installation direction of outdoor antenna. The outdoor antenna should point in the direction of the tower, and it is much better to keep line of sight. Select opposite directions for outdoor antenna and indoor antennas. Please test the signal quality and make sure to avoid self-oscillation first, if have to install Outdoor and Indoor antennas in the same direction. If the directional antenna is selected, the main directional angle should point to the tower antenna. If the performance is poor due to weak signals or poor phone call quality, please adjust the direction of outdoor antenna or change its position in order to obtain the best calling effect. The wide band repeater supports all mobile operators or different mobile systems, so please adjust the outdoor antenna direction to have a balance between signals of different mobile operators or various mobile systems. Outdoor antenna installation---Notes:

Do not install the outdoor antenna during the rainy day with lightning. Please follow the instructions to install the outdoor antenna. It is very important to waterproof the connectors of outdoor antenna and feeder lines. In order to avoid interference, please note that the outdoor antenna should be far away from objects of metal, high voltage line, RF antennas and high voltagetransformer. Repeater is a tow-way signal amplifier. So proper isolation between outdoor antenna and indoor antenna is necessary to avoid self oscillation. (About the definition for self oscillation, take the MIC and loudspeaker for example, if it is too close for each other, it could make loud noise.) As shown in the below illustration, the booster amplifies the downlink signal from the tower and send to the indoor antenna hereafter. If the distance between outdoor antenna and indoor antenna is less than the required distance, the amplified signal R will go back from indoor antenna to outdoor antenna. So it will lead to self oscillation and reduce the coverage area, also the bad calling quality could happen at the same time, and the worse is that mobile network could be influenced badly and the operators will finally come to shut off the repeater system. The minimum distance between outdoor antenna and indoor antenna shall be more than 39ft; again, the direction of outdoor and indoor antennas shall be opposite. For example, 15

3.3 Cable layout and connector assembly Connect cables to the boosters ports after installing and fixing outside and inside antennas.Steps as below:

1Open the cable package and make it bend naturally and smoothly. 2 Keep horizontal cables straight and fasten them with a fixing clip every 1 to 1.5 3The cable should be bent naturally and smoothly to avoid cable damage caused by meters. strong pulling. 4RF cables should be separated from power cables; If the site condition are limited, installing RF cables and power cables together may affect product performance. 5Tighten all cable connections to ensure a good contact. 6Offer waterproof treatment to the exposed cable ends to avoid oxidation. 7Finish the cable layout At last, plug the Power Supply into wall outlet and enjoy your boosted cell signal!

The Specification of BoostersPorts:

Port Name DC12V OUTDOOR/B TS INDOOR/MS Port Description 12V Input The reception of base station downlink signal, and the transmission of cell phone uplink signal The transmissionof base stationdownlink signal, and the reception of cell phone uplink signal 16 3.4.Switch on the power After power is on, first check the alarm and power LEDS. Statu s Gree n Off Definition Normal DC power problem The status and definition of POWER indicators:

3.5.CheckCoverage

(1) PerformatestwithamobilephoneordatacardCheckbelow:

- A weak input signal leads to the low output power. Need to change the direction of outdoor antenna or its installation position or replace outdoor antenna with higher gain antenna to increase input signal powerlevel.

- Check whether it is necessary to add more Indoor antennas sine barriers to block the signal penetration, and check whether the repeaters power is enough. InstallmoreIndoorantennasorreplacewitharepeaterofhigherpowerlevel 17

(2) If the signals in small part of the areas have not been improved,please check below:

- Check whether the service antenna is installed correctly or not, you may need to move the antenna location to improvecoverage.

- Checkifitisnecessarytoadjustthedirectionoftheserviceantenna.

-Check whether it is necessary to add one or more antennas to enhance the coverage of special areas. 18 1. The signal booster will only work with the correct frequency, so please make sure yourphonesignaliswiththesamefrequencyasthesignalbooster. 2. This cell phone signal booster will only make a weak signal stronger, it can't create a signal. That means it won't work if the outdoor antenna can't receive any signal. 3. The outdoor antenna should receive 2-3 bars of stable signal in the location where the outdoor antenna is fixed; otherwise, the booster won't work very well. 4.Must connect the antennas first, and then switch on the power; otherwise, may damage therepeater. 5. Determine the best location where the highest signal strength is received on your phone (most amount of bars). Once you ascertain the best location, then permanently mount the outdoor antenna. Keep the distance between the outdoor antenna and indoor antenna more than39ftand make sure that there is a proper physical separation between the outdoor antenna and indoor antenna. The above thingsareofcriticalimportancetotheboosters'normalworking. Reason 1: There are loose or wrong connections in the repeater system. Solution:Checkthattheconnectionsbetweenthedifferentpartsofthe system are hooked up correctly andtightly. Reason 2: The signals of other operators nearby received by outdoor antenna aretoostrong.(Forexample,theotheroperatorssignalsare10dbstronger than the needed signals). Solution 1: Change the direction of outdoor antenna or its installation position, so that the gap of signal strength is reduced between operators. Solution 2: Use barriers ( like buildings ) to block signals of other operators. 19 The Solution to different LED Lights Status

* Connecting indoor and outdoor antennas and then power on, the signal boosterandpoweradaptercanworknormallyiftheLEDofboostersta yon greenandadaptersLEDalsokeepongreenorred.

* IftheboostersLEDareflashingingreenorred,oritsredindicatorlightst ay onwithoutconnectinganyantenna,meaningthattheboosterbreakdow nand pleasecontacttheCustomerServicetodothereplacement.

* Ifthepowerindicatorisnotonandtheadaptercantwork,pleasecont act the Customer Service to do thereplacement.

* Connecting indoor and outdoor antennas and then power on, but the phones signal cant get enhancement while the green or red boosters LED are flashing or its red indicator stay on; meaning that outdoor antennas receiveastrongersignalandtheboostersstayonOverpowerorSelf-

Oscillationstatus.Usersneedtoturnoffthepowerandexcludetheexter nalfaultsby yourself, then adjust the distance between outdoor and indoor antennas; finally restart yourbooster. DuringtheprocessofusingyourAmplifier,movetheAmplifierfurtherawayf rom thosedevicesiftheAmplifierinterfereswithyourradioorotherelectronicde vice. If necessary, please contact your local dealerdirectly. 20 Remark:

strength. Increase the output power*---Recommended ways: adjust the outdoor antenna direction/location, or replace with a higher gain antenna to increase input signal You should receive the Mobile Booster kit which includes the similar above-

mentioned fittings. Before using it, please confirm that your Boosters frequency range is the same as your service providers network, otherwise, the amplifier will not work properly. Q1: Red Light on Booster Means the Self-oscillating Alarm.

- A. Increase the distance (horizontally or vertically) between the Outside and Inside antenna; Verify there is wall isolation between them.Unplug and re-plug in power supply.

- B. Tighten all cable connections (be sure to hand-tighten only, do NOT use tools).Unplug and re-plug in power supply.

- C. Verify the receiving antenna if be damaged.

- D. Adjust the location of outside antenna.Unplug and re-plug in power supply. Q2 The boosters light is not on.

- A.Unplug and re-plug in power supply.

- B.Re-connect the DC12V port on booster Q3: All lights is normal, but there is not any change with signal strength.

- A.Verify the receiving antenna if be damaged.

- B.Tighten all cable connections (be sure to hand-tighten only, do NOT use tools).

- C.Verify whether the outside and inside antennas connects to correct boosters

- D.Verify whether the boosters frequency is corresponding with cell phone port. frequency. 21 call. Q4: After finishing the inst tallation, cell pho one signal is impr roved but cant make a

- A.Veri

- B.Veri direction fy outside antenn fy the location m n of outside ante

- C. Ver rify whether the l with boo osters frequen na is mounted co mounting outside enna is pointed to ocal operators ncy. orrectly. antenna has sta owards to the ce ble signal,and co ll tower. onfirm the s communication frequency is con nsistent Q5: Ph

- A.Adju nearest

- B.Re-

too muc

-C.Verif

( Too c isolatio don't be one calls and In ust the direction t cell tower. route the cable ch, trying to cho fy the distance b lose distance m n between them e mounted on th nternet access a of outside ante re in poor qualit nna and keep it ty. t point towards t he from outside an oose straight line between outside ay result in self-

m.It is recommen he same horizon tenna to booste e). e and inside ante

-oscillating),and nded that inside ntal level. er (Don't bend th he cable ennas is over 40 there should ha and outside ant 0 feet ave wall tennas Q6. Ce

- A.Adju

- B.Ver

- C.Tigh ell phone signal ust the angle of ify the place mo hten all cable co is improved but whip antenna. ounting outside a onnections. the coverage is unsatisfied. antenna receive s a strong enou gh signal. Q7. How Not all o location w to register the of consumers req n requirement. w booster with Ser quire to register t ith registration st rial Number ?

the booster . It d teps for your refe epends on your erence area Step 1:

Open the follow wing registration L Link given www.wav eform.com/page es/guide-to-signa l-booster-registra ation Step 2:

Click an Find out mobile nd Enter phone service p provider that com patible with your r booster. 2 22 Step 3: Fill in your Location information and Booster's Serial Number, The Serial Numberisthe FCCID,(on the label on the back of Booster unit ) TheFederalCommunicationsCommission(FCC)hastestedthisproductan dfound ittocomplywiththeirRFExposureRequirements,pursuanttoFCCPart22an d24. Dont expose this product to extreme low or high temperature ( -20 and 55 ). Thereareonconsumerserviceableormodifiablepartsinsidethisboosterpro duct. Alteration or abuse of the booster or other components will void this products warranty, and could be dangerous to theuser. Do not purchase antennas, cables and couplers that are not authorized by FCC agencies. Repeater should follow system requirement of communication equipment, assure good grounding and lightningprotection. The power supply voltage of repeater should meet the standards of security requirement; any operation shall be carried out only after cutting off only the professional is authorized for theoperation. Do not dismantle machine, maintain or displace accessories by yourself, because in this away, the repeater, touch the module ofrepeater, or module to touch the electronic component. The components will be damaged due to electrostatic. 23 Do not open the repeater, touch the module of repeater, or moduleto the electronic component. The components will be damaged due to electrostatic. 24 30-day money-back guarantee, 3-month free replacement, 2-year manufacturer warranty Our Signal Boosters are warranted for 2 years against defects in workmanship or materials. Warranty cases may be resolved by returning the product directly to the manufacturer at the consumers expense, with a dated proof of purchase and an Order Number supplied. We shall either repair or replace the product at its option. This warranty does not apply to any Signal Boosters determined by us to have been subjected to misuse, abuse, neglect, or mishandling that alters or damages physical or electronic properties. Replacement products may include refurbished products that have been re-

certified to conform with product specifications. Label 25 Complete list of authorized antennas, cables, and cable loss:

Outdoor:

Option 1: Yagi antenna with 15m 4D-FB cable to the Out Door port. 746-757 6 3.7 776-787 6 3.8 Remark Default Matching Antenna Option 2: Log periodic antenna with 15m 4D-FB cable to the Out Door port. 746-757 8 3.7 776-787 8 3.8 Frequency(MHz) Gain(dBi) Loss(dB) Photo Frequency(MHz) Gain(dBi) Cable Loss(dB) Photo Option 3: Tubular antenna with 15m 4D-FB cable to the Out Door port. Frequency(MHz) Gain(dBi) Cable Loss(dB) 746-757 4 3.7 776-787 4 3.8 26 Photo Option 4: Plate antenna with 15m 4D-FB cable to the Out Door port. Frequency(MHz) Gain(dBi) Cable Loss(dB) Photo 746-757 6 3.7 776-787 6.5 3.8 Indoor:

Option 1: Equipment "INDOOR" ports with right Angle antenna. 746-757 2.5

776-787 2.5

Frequency(MHz) Gain(dBi) Cable Loss(dB) Photo Remark Frequency(MHz) Gain(dBi) Cable Loss(dB) Option 2: INDOOR ports for suction dish antennas. Default Matching Antenna 746-757 4

27 776-787 4

Photo Option 3: Omnidirectional roof suction antenna with 5 m 4D-FB cable and

'INDOOR' ports. 746-757 2 1.4 776-787 2 1.4 Frequency(MHz) Gain(dBi) Loss(dB) Photo Option 4: Panel antenna with 5 m 4D-FB cable and 'INDOOR' ports. 746-757 6 1.4 776-787 6.5 1.4 Frequency(MHz) Gain(dBi) Cable Loss(dB) Photo WarningUnauthorized antennas cables and/or coupling devices are prohibited by FCC rules. Please contact FCC for details 1-888-CALL-FCC 28

Shenzhen Fuzhixing Electronics Co., Ltd. Agent Authorization Company: Shenzhen Fuzhixing Electronics Co., Ltd. Address: 5/F, Block C, Penglongpan Hi-technology Park, Dafu Ind. Zone, Guanlan, Longhua New Dist., Shenzhen, Guangdong, China Product Name: cell phone signal booster Model Number(s): YV70, YWV70, YBV70 Product Description: cell phone signal booster We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature:

Date: 2022-05-09 Name:

Fuyuan Zhang Title:

CEO Company: Shenzhen Fuzhixing Electronics Co., Ltd.

Outdoor:

Option 1: Yagi antenna with 15m 4D-FB cable to the Out Door port. Frequency(MHz) 746-757 776-787 Gain(dBi) Loss(dB) 6 3.7 Remark Default Matching Antenna Option 2: Log periodic antenna with 15m 4D-FB cable to the Out Door port. Frequency(MHz) 746-757 776-787 Gain(dBi) Cable Loss(dB) 8 3.7 Option 3: Tubular antenna with 15m 4D-FB cable to the Out Door port. Frequency(MHz) 746-757 776-787 Gain(dBi) Cable Loss(dB) 4 3.7 Photo Photo Photo Option 4: Plate antenna with 15m 4D-FB cable to the Out Door port. Frequency(MHz) 746-757 776-787 Gain(dBi) Cable Loss(dB) Photo 6 3.7 Indoor:

Option 1: Equipment "INDOOR" ports with right Angle antenna. Frequency(MHz) 746-757 776-787 6 3.8 8 3.8 4 3.8 6.5 3.8 Gain(dBi) Cable Loss(dB) 2.5

2.5

Default Matching Antenna Option 2: INDOOR ports for suction dish antennas. Frequency(MHz) 746-757 776-787 Gain(dBi) Cable Loss(dB) Photo 4

Option 3: Omnidirectional roof suction antenna with 5 m 4D-FB cable and 'INDOOR' ports. Frequency(MHz) 746-757 776-787 Gain(dBi) Loss(dB) 2 1.4 Option 4: Panel antenna with 5 m 4D-FB cable and 'INDOOR' ports. Frequency(MHz) 746-757 776-787 Gain(dBi) Cable Loss(dB) 6 1.4 6.5 1.4 Photo Remark Photo Photo 4

2 1.4

Shenzhen Fuzhixing Electronics Co., Ltd. May.09, 2022 Attestation for signal booster: FCC ID:

2ALGR-YV70 Each Signal Booster certificated under FCC ID: 2ALGR-YV70 is manufactured and individually tested to ensure FCC compliance:

(1) Licensee consent for Fixed consumer booster has been obtained (consent be made available upon FCC/TCB request)

(2) NPS and other compliance/safeguard features have been implemented

(3) NPS and other compliance/safeguard features are defaulted to ON configuration (in

(4) NPS and other compliance/safeguard features cannot be field reconfigured, disabled or

(5) This Consumer booster is not user programmable, does not need fine tuning or adjustment, does not require professional installation.

(6) Future software upgrade will not cause non-compliance. operation) removed Yours sincerely, Fuyuan Zhang

Shenzhen Fuzhixing Electronics Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject; Request for Confidentiality FCC ID: 2ALGR-YV70 Date: 2022-05-09 To Whom It May Concern, Pursuant to the provisions of the Commissions rules Title 47 Sections 0.457 and 0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure Sincerely, Signature:

Title: CEO Name: Fuyuan Zhang

Shenzhen Fuzhixing Electronics Co., Ltd. Statement Product: cell phone signal booster Model: YV70 Additional Model: YWV70, YBV70 Trademark: N/A We hereby state that All models above are identical components, and just trademark are different for the marketing requirement. in interior structure, electrical circuits and Your assistance on this matter is highly appreciated. Yours sincerely, Signature:

Date: 2022/05/09 Name: Fuyuan Zhang Company Name: Shenzhen Fuzhixing Electronics Co., Ltd. Address: 5/F, Block C, Penglongpan Hi-technology Park, Dafu Ind. Zone, Guanlan, Longhua New Dist., Shenzhen, Guangdong, China Tel / Fax: +86-13590129522/+86-0755-89501257 E-Mail: 2880130518@qq.com

Shenzhen Fuzhixing Electronics Co., Ltd. May. 09, 2022 Subject: Tuning and Adjustment of Signal booster, FCC ID: 2ALGR-YV70 There are no external tuning adjustments, the amplifier is factory set not exceed maximum gains, power levels, and downlink dependent region (RSSI) set points as provided in the test results. Yours sincerely, Fuyuan Zhang