FCC ID: 2AITF-WSHT-280 Wireless Headphone System

by: Avantree Technology Co., Ltd. latest update: 2019-04-24 model: WSHT-280

One grant has been issued under this FCC ID on 04/24/2019 (this is one of eight releases in 2019 for this grantee). Public details available include internal & external photos, frequency information, and manuals. some products also feature user submitted or linked warrantee terms, password defaults, drivers, troubleshooting guides, & instructions.

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all	frequencies		exhibits	applications
		manual

all exhibits 12
1 ~ 2019-04-24 12

app s				submitted / available
1	Users manual	Users Manual	pdf	2.48 MiB	April 24 2019
1		Cover Letter(s)	pdf		April 24 2019
1	Block diagram	Block Diagram	pdf		April 24 2019	confidential
1		Cover Letter(s)	pdf		April 24 2019
1		External Photos	pdf		April 24 2019
1		ID Label/Location Info	pdf		April 24 2019
1		Internal Photos	pdf		April 24 2019
1	Operational Description	Operational Description	pdf		April 24 2019	confidential
1		RF Exposure Info	pdf		April 24 2019
1	Schematics	Schematics	pdf		April 24 2019	confidential
1		Test Report	pdf		April 24 2019
1		Test Setup Photos	pdf		April 24 2019

exhibit
download
text

Users manual

Users Manual

pdf

2.48 MiB

April 24 2019

FCC ID 2AITF-WSHT-280 WSHT-280 User Guide Avantree WSHT-280 Wireless Headphone System with Transmitter/Charging Dock FCC ID:2AITF-WSHT-280 87 6 5 4 AUDIO IN SELECT OPT. COAX. RCA 0 dB

-8 dB ATT. TV AVR AUDIO IN OPTICAL COAXIAL RCA R L POWER OFF ON DC IN 5V 550mA 9 10 11 12 13 14 15 1. Power ON/OFF 2. Power Indicator 3. Volume Control 4. Optical/Coaxial Indicator 5. Power Indicator 6. Charge Indicator 7. Contact Pins 8. Contact Points 9. Audio In Select Switch 16

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10. Attenuation (ATT.) Switch 11. Optical Audio Input 12. Coaxial Audio Input 13. RCA Audio Input 14. Power ON/OFF Switch 15. DC IN 16. AUX/3.5MM Headphone Jack AUX/3.5mm audio cable AUX/3.5mm to RCA audio cable 6.35mm to 3.5mm audio adapter 2 x 1.2v NiMH rechargeable batteries

( Installed in headphones) These headphone can only use 2 x 1.2V NiMH rechargeable batteries. Otherwise, it may cause explosion or fire. 4 Connect the transmitter to your TV/audio source 4.1. Optical Audio Out OPTICAL Optical audio cable Fig 4-1 Set up the transmitter using optical audio out Now, you should be able to hear sound from headphone, if no sound a. Ensure the Audio In Select Switch on transmitter is set to OPT. position

(This is IMPORTANT). b. Ensure your TV Speaker is set to External Speaker. c. Ensure TV Audio Format is set to PCM or DOLBY/DTS is off (This is IMPORTANT). Set up 1 Check your TV/Audio Source output options Speakers Internal speakers External speakers Headset Settings Audio Format PCM Dolby Digital DTS DTS Neo 2:5 Optical OUT AUX/3.5mm Jack Options RCA jacks labeled

"AUDIO OUT"

Other RCA jacks (usually audio IN) Big Phone Jack Fig 4-2 Set TV speaker to External Speaker Fig 4-3 Set TV audio format to PCM

(IMPORTANT) R L 4.2. AUX/3.5MM Audio Out AUX/3.5mm Natively Supported?

Please refer to Point:

4.1 4.2 4.3 N/A 4.4 Fig 1-1 Output options 2 3 Power up the transmitter/charging dock Connect the transmitter/charging dock to a compatible power source using AC adapter. Slide ON/OFF switch to ON position, POWER LED indicator lights up BLUE. Charge and turn on the headphone Charge headphone for 6 hours prior to the initial use:

Place the headphone on transmitter/charging dock, the charging begins automatically, the CHARGE LED on the transmitter/charging dock lights up YELLOW-GREEN. When the charging is complete, the CHARGE LED on the transmitter/charging dock will turn off. Turn on the headphone: Press and hold for 1 second, LED indicator close to stay SOLID RED for 1-2 seconds, then the headphone will auto connect to the transmitter, LED indicator turn SOLID YELLOW-GREEN. 3.5mm to RCA audio cable AUX/3.5 mm audio cable Fig 4-4 Set Set up the transmitter using AUX/3.5mm audio out Now, you should be able to hear sound from headphone, if no sound Speakers Internal speakers External speakers Headset a. Ensure the Audio In Select Switch on transmitter is set to RCA position (This is IMPORTANT). b. Ensure your TV speaker is set to Headset. Fig 4-5 Set TV speaker to Headset 3 YELLOW-GREEN 4.3. RCA Audio Out(Red/White ports labeled AUDIO OUT) 4 Replacing battery If battery need replacing, ONLY replace with 2 X 1.2V NiMH rechargeable batteries. 4) Headphone volume is too low Short press + on headphone to raise volume, when it reaches maximum you will hear beep. AUDIO OUT R L RCA audio cable AUDIO OUT

Fig 3-1 Charge the headphone Fig 4-6 Set up the transmitter using RCA audio out Now, you should be able to hear sound from headphone, if no sound a. Ensure the Audio In Select Switch on transmitter is set to RCA position

(This is IMPORTANT). b. Ensure use TV Red/White ports labeled AUDIO OUT, other Red/White ports are incorrect (This is IMPORTANT). c. Ensure your TV Speaker is set to External Speaker. Speakers Internal speakers External speakers Headset Fig 4-7 Use the right RCA ports Fig 4-8 Set TV speaker to External Speaker 4.4. Receiver with 6.35mm Phone Jack at Front PHONE 6.35mm to 3.5mm audio adapter AUX/3.5 mm audio cable 3.5mm to RCA audio cable Fig 4-9 Set up the transmitter using 6.35mm phone jack Now, you should be able to hear sound from headphone, if no sound a. Ensure the Audio In Select Switch on transmitter is set to RCA position

(This is IMPORTANT). Notes:

- Slide ATT. switch to -8dB/AVR when you use AV Receiver.

- Do NOT set volume on AV Receiver too high. TIPS Adjust Volume on Headphone Short press +or - to raise or lower the volume. One will hear beep when the volume reaches maximum. After use Power off the headphones - Press and hold the for one second. The power indicator will turn off. Place headphones on the transmitter/charging dock to recharge. Headphone charging When headphone battery is low, headphone indicator will flash RED. You will also hear an beep from headphone once a minute. This means its time to place headphone on the transmitter/charging dock for charging. When headphone are properly seated on the transmitter/charging dock, the CHARGE indicator will light up YELLOW-GREEN. This means headphones are recharging properly. If headphone are not properly placed, the CHARGE indicator will not light up. Once the charging is complete, the YELLOW-GREEN CHARGE LED on transmitter/charging dock will turn off. There is no need to remove headphone from transmitter/charging dock. Better reception HT280 work range reaches up to 100 feet, it may varies due to the environment. If your headphone are picking up noise or interference, move closer to the transmitter. Even within the work range, there may be some dead spots where the RF signal cannot be received. This issue is inherent with RF signals and does not indicate a faulty product. Just slightly move the transmitter and the dead spot can be corrected. If no signal or low signal for 5 minutes When there is no signal for 5 minutes, the transmitter will automatically power off and the transmitter POWER indicator will turn off. The transmitter will restart once the signal resumes, POWER indicator will turn BLUE. If the signal input from your source is too low for 5 minutes, the transmitter may also turn off. In this case, raise the volume of the audio source to a higher level but without distortion. You may then need to lower the volume on your headphone. If signal noise is output from your audio source, the transmitter may not turn off even though there is no audio signal. LED indication of the transmitter/charging dock LED indicator Work status CHARGE POWER OPTICAL /

COAXIAL Recharge headphone Recharge of headphone complete Power on Power o Use optical or coaxial input and audio signal is detected Use optical or coaxial input but NO audio signal is detected after 5 minutes LEDs status SOLID YELLOW-GREEN Turn o Flashes BLUE for 4-5 seconds, then stay SOLID BLUE Turn o Stay SOLID RED Flashes RED LED indication of the headphone Work status Power on Connected LED status LED close to stay SOLID RED for 1-2 seconds LED close to turn SOLID YELLOW-GREEN Troubleshooting 1. No sound/low sound 1) Transmitter and Headphones are not connected properly Turn off and on both headphones and transmitter, they should auto connect to each other, once connected successfully, LED indicator close to on headphone will turn YELLOW-GREEN. 2) No audio signal into the transmitter If connected using optical port:

1) Ensure your TV audio format is set to PCM or DOLBY/DTS is off;

2) Change your TV audio out setting to External Speaker. If connected using AUX/3.5mm audio out:

Plug your wired headphone directly to the port, check if the sound is normal. If no sound, ensure change your TV audio out setting to Headset. If connected using the RCA ports:

Plug your wired headphone to the RCA ports with RCA audio cable, check if the sound is normal. If no sound, 1) Ensure use the Red/White ports labeled AUDIO OUT. Other RCA ports are usually AUDIO IN and incorrect;

2) Change your TV audio out setting to External Speaker. 3) Transmitter Audio In Select Switch setting is not correct Slide the Audio In Select Switch on transmitter to correct position:

- If using optical port, slide it to OPT.

- If using RCA port, slide it to RCA.

- If using coaxial port, slide it to COAX.. 2. Distorted or intermittent sound Headphone battery is low, charge the headphone. Headphone are too far from the transmitter. Move closer to the transmitter or change position of the transmitter. Do not place the transmitter on a metallic table. Volume on your audio source is too low or too high. 3. Cannot charge the headphone Place the headphone on the transmitter/charging dock correctly so that the CHARGE indicator lights up YELLOW-GREEN. The transmitter/charging dock contact pins and/or the headphones contact points need cleaning. Clean them with a dry cotton swab. Check that the AC adapter is connected properly to the transmitter. WARNINGS / CAUTIONS Permanent hearing loss may result from long-term exposure to sound at high volumes. This product contains small parts which may be a choking hazard. Not suitable for children under age 3. To reduce the risk of fire or electrical shock, do NOT expose this product to rain, liquids or moisture. Do NOT make unauthorized alterations to this product. Do NOT expose products containing batteries to excessive heat (e.g. direct sunlight, fire, etc.). Do not leave a fully charged battery connected to a charger; overcharging may shorten its life. Declaration of Conformity CE: The product is in conformity with the essential requirements of Article 3.1 (a) (b), 3.2 of Directive 2014/53/EU and the essential requirements of Directive 2014/30/EU. This device complies with part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference (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 not expressly approved by the party responsible for compliance could void the user's 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 accor-

dance with the instructions, may cause harmful interference to radio communi-

cations. 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 equip-

ment 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. To maintain compliance with FCCs RF Exposure guidelines, This equipment should be installed and operated with minimum distance between 20cm the radiator your body: Use only the supplied antenna. Any questions? Contact:

Support@avantree.com

(Response Time: 1 working day) Self-service Support:

More FAQs on support.avantree.com 100+ Step by step video Guide youtube.com/avantree/playlists Telephone Support (Mon-Fri):

USA / CANADA +1 800 232 2078 (EN, PST 9am-5pm) EU / Asia telephone No. refer to http: //www.avantree.com/contact-us Dispose of the packaging and this product in accordance with the latest provisions. Z-PKQG-WSHT280-V1

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		frequency	equipment class	purpose
1	2019-04-24	2406 ~ 2472	DXX - Part 15 Low Power Communication Device Transmitter	Original Equipment

Application Forms

app s	Applicant Information
1	Effective	2019-04-24
1	Applicant's complete, legal business name	Avantree Technology Co., Ltd.
1	FCC Registration Number (FRN)	0025669623
1	Physical Address	The 4th Floor, Yuepeng Building
1		Shenzhen, N/A
1		China

app s	TCB Information
1	TCB Application Email Address	c******@vista-compliance.com
1	TCB Scope	A2: Low Power Transmitters (except Spread Spectrum) and radar detectors operating above 1 GHz

app s	FCC ID
1	Grantee Code	2AITF
1	Equipment Product Code	WSHT-280

app s	Person at the applicant's address to receive grant or for contact
1	Name	N** W****
1	Title	Manager
1	Telephone Number	0755-********
1	Fax Number	0755-********
1	E-mail	n******@avantronics.com

app s	Technical Contact
1	Firm Name	Shenzhen Huaxia Testing Technology Co., Ltd
1	Name	A** M**
1	Physical Address	1F., Block A of Tongsheng Technology Building
1		Shenzhen
1		China
1	Telephone Number	+86-7********
1	Fax Number	86-75********
1	E-mail	a******@cqa-cert.com

app s	Non Technical Contact
		n/a

app s	Confidentiality (long or short term)
1	Does this application include a request for confidentiality for any portion(s) of the data contained in this application pursuant to 47 CFR § 0.459 of the Commission Rules?:	Yes
1	Long-Term Confidentiality Does this application include a request for confidentiality for any portion(s) of the data contained in this application pursuant to 47 CFR § 0.459 of the Commission Rules?:	No
	if no date is supplied, the release date will be set to 45 calendar days past the date of grant.

app s	Cognitive Radio & Software Defined Radio, Class, etc
1	Is this application for software defined/cognitive radio authorization?	No
1	Equipment Class	DXX - Part 15 Low Power Communication Device Transmitter
1	Description of product as it is marketed: (NOTE: This text will appear below the equipment class on the grant)	Wireless Headphone System
1	Related OET KnowledgeDataBase Inquiry: Is there a KDB inquiry associated with this application?	No
1	Modular Equipment Type	Does not apply
1	Purpose / Application is for	Original Equipment
1	Composite Equipment: Is the equipment in this application a composite device subject to an additional equipment authorization?	No
1	Related Equipment: Is the equipment in this application part of a system that operates with, or is marketed with, another device that requires an equipment authorization?	No
1	Is there an equipment authorization waiver associated with this application?	No
1	If there is an equipment authorization waiver associated with this application, has the associated waiver been approved and all information uploaded?	No

app s	Test Firm Name and Contact Information
1	Firm Name	Shenzhen Huaxia Testing Technology Co., Ltd
1	Name	A** M**
1	Telephone Number	+86-0********
1	E-mail	a******@cqa-cert.com

Equipment Specifications
	Line	Rule Parts	Grant Notes	Lower Frequency	Upper Frequency	Power Output	Tolerance	Emission Designator	Microprocessor Number
1	1	15C		2406.00000000	2472.00000000

some individual PII (Personally Identifiable Information) available on the public forms may be redacted, original source may include additional details

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