FCC ID: 2AUXI-DB-118 HEATED APPAREL

DEWBU DB-118 APP APP Operation Manual for DEWBU DB-118 Intelligent Thermostat Heating Apparel Please read these instructions completely and save this manual for future use. DEWBU DB-118 NTC APP DEWBU DB-118 precise collect the temperature by NTC resistance then it can control the thermostat accurately. To use the M-mode adjust high medium or low temperature gear. Or download the APP that can connect with our DEWBU DB-118 heating apparel to adjust the three temperature gear or custom the temperature or custom the heating time etc. 1, M-mode use manual APP APP use manual 1. 3 LED 55 1,The red LED will light on upon long press the button for 3 seconds. The default temperature is 50The default gear is High Level 2. DEWBU APP. 2, Please download the DEWBU APP from Google store, Apple APP store or scan the QR code as follow. 3. The main interface after registered and login Click to add device 4. Choose the device Click to choose the device( jacket, vest etc) 5. Search the model of the device Click to search the apparel model of your purchased, then the red light and the blue light will blink once and enter the main interface. 6. The main interface Connected real-time temperature The Device Model Unbind the device add other model device ATTENTION APP

. The app cannot connect with two same devices simultaneously. Please unbind the pre-connected apparel if you need connect with other same model heating apparel. Click the real time temperature to enter the page of device control when connecting the device successfully. 7. Page of device control Screen of temperature 30-60 Custom temperature(30-60) 0-10 Heating Time Set(0-10 Hours) Three gear temperature (High medium Low) Device Set Attention The heating time is normally open when use the M-Mode 0 It will enter the standby mode and stopped heating when the heating time is 0hours. APP The four color light will always be on when use the APP mode. The LED light will show you the corresponding gear color when use the M-mode. Click the set button to enter the page of device setup menu. 8. The device setup menu Set high level temperature Set medium level temperature Set low level temperature The button on the apparel The indicates time setup Q&A 1. APP Please check the time set of the power switch on the app if the button LED light cant be always on 2. 3 Please long press the button for 3 seconds if the apparel cant be heating-up. 3. APP Please adjust the temperature of the APP if the real time temperature is not reach to the expectation. 4. Please single click on the button of the apparel to change to M-Mode 5. :

3 APP APP Please long press the button of the apparel for 3 seconds to re-open the power switch if the app unable searches the device. 6. APP Please reset the heating time on app, or one click the power on button change to the M-mode if the red and blue led light always on but the apparel cant heat-up. 7. APP 8. 9. Please contact with us if the red and blue led light flicking, but the app cant show the temperature. Our contact email is Help@dewbu.com Label The size of the label is 40mm*25mm with White forecolor. The size of the MIC logo is 5mm*5mm. 210-137288 HEATED APPAREL Model: DB-118 This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

-- Reorient or relocate the receiving antenna.

-- Increase the separation between the equipment and receiver.

-- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

-- Consult the dealer or an experienced radio/TV technician for help. This device and its antenna(s) must not be co-located or operation in conjunction with any other antenna or transmitter. Radiation Exposure Statement The device has been evaluated to meet general RF exposure requirement. in portable exposure condition without restriction.

Label & Label Location FCC ID: 2AUXI-DB-118 Size: 20mm(L)*3mm(W)

Difference description FCC ID: 2AUXI-DB-118 Model: DB-118,DB-510,DB--12 3.0,DB-116,DB-322,DB--12 2.0 The HEATED APPAREL manufactured by Shenzhen DEWBU Import&Export Co.,LTD. needs to apply for FCC certification. The applied models are list as above. They are the same except for the model name, even the principle of the circuit, the electrical structure and all key components related to safety and electromagnetic compatibility are the same. The difference does not affect electromagnetic compatibility and safety. Sincerely, Signature Jason Hao Manager Shenzhen DEWBU Import&Export Co.,LTD.

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date: December 27, 2019 TO WHOM IT MAY CONCERN Pursuant to Paragraphs 0.457 and 0.459 of the Commissions Rules (47 C.F.R.) and Section 552(b)(4) of the Freedom of Information Act, we requests confidentiality for the following products:

FCC ID 2AUXI-DB-118 For the product stated above, we request that the following information be held confidential;

Model name DB-118,DB-510,DB--12 3.0,DB-116,DB-322,DB--12 2.0 Exhibits Long-Term Short-Term Short-Term Confidentiality Confidentiality Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos Users Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Signature Jason Hao Manager Shenzhen DEWBU Import&Export Co.,LTD.

Shenzhen DEWBU Import&Export Co.,LTD. C818, Tiangong Anfang Market, Niulanqian Industrial Bldg., Xinniu Rd., Minzhi Sub-dist., Longhua Dist., Shenzhen, China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 12/27/2019 To whom it may concern:

We, Shenzhen DEWBU Import&Export Co.,LTD., the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: 2AUXI-DB-118 including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Signature Jason Hao Manager Shenzhen DEWBU Import&Export Co.,LTD.