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2-In-1 Bluetooth 5.0 Receiver Transmitter

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Item Description:

Note: when you first insert SY317, the light is Red, it is in TX (Transmitter)Mode, which will not switch to RX Mode automatically. It needs you to unplug the SY317 and then insert again, the light will become Blue, and it is in RX(Receiver) Mode now.

Sometimes when it is in the same mode for long time, you need to repeat unplug and insert twice, and it will change to the other mode, please remember:

  • Transmitter mode:Red Light ON, pair with Bluetooth Headphone or Bluetooth Speaker, streams audio from your non-Bluetooth TV, home stereo system, or CD player to your Bluetooth headphones or speakers
  • Receiver mode: Blue Light ON, pair with Bluetooth phone, streams audio from your Bluetooth-enabled phone, tablet, or computer to your wired stereo, speakers, or headphones.

There is no built-in battery, and it is powered by DC 5V usb interface

Broad Compatibility: With the included 3.5mm cable, this Receiver Transmitter adapter can widely be used on your computer, laptop, home stereo system, headphone, smartphone, Mp3 player, CD player, etc.


Q1: Why i can not find the SY317 in my computer?

A: When you plug the SY317 to your computer usb port, The computer’s usb port just be used as a power supply for the SY317. So the computer don’t needs to see it, you just need to connect it with PC by 3.5mm AUX cable so it will work for PC. When using for PC, you must use TX mode(Red light blinking). Then pair with your Bluetooth earphone/speaker.

Q2: Why I can not find the SY317in my smart phone bluetooth ?

A: When you use the SY317 to pair with your phone, you need to confirm the SY317 was in bluetooth receiver mode (LED light should be BLUE blinking).If the light was red blinking,Its bluetooth transmitter mode ,not receiver mode ,so you can not find it in your phone.

Q3: Why I can not pair with my bluetooth earphone ?

A: When you use the SY317 to pair with your bluetooth earphone, you need to confirm the SY317 was in the bluetooth transmitter mode (LED light should be RED blinking). Aux should be connected with PC and SY317 . If the light was blue blinking,its bluetooth receiver mode ,not transmitter , so you can not pair with your bluetooth earphone.

Q4: How to change between bluetooth transmitter(RED light) and receiver mode(BLUE light) .

A: Red light was bluetooth transmitter mode; Blue light was bluetooth receiver mode;The way to change the light was re-plug the USB device to your usb power supply.

Q5: Why I connect successful,but its don’t have sound?

A: In transmitter mode(Red light): You need to use the 3.5mm audio cable to connect your TV/PC/Tablet with our SY317. Noted, The 3.5mm cable should be plugged into your TV/PC/Tablet’s 3.5mm audio output. In receiver mode(blue light): You need to use the 3.5mm audio cable to connect your Amplifier/wired speaker/car audio system with our SY317. Noted, The 3.5mm cable should be plugged into your Amplifier/wired speaker/car audio system 3.5mm audio input.

Q6: Can I use for my wireless keyboard/mouse ?

A: Not support !! Our device only can be used as bluetooth receiver or bluetooth transmitter. Can not be used as a WiFi/Wireless adapter to connect with WiFi network and dose not work with keyboard / mouse.

Q7: Can I use it to connect between phone and Amplifier/wired speaker/car audio system etc?

A: Yes ,but you need to confirm your Amplifier/wired speaker/car audio system have 3.5mm audio output port.

Q8: Can I use it to connect between bluetooth earphone/speaker and TV/PC/Tablet/CD Player/MP3/MP4 ?

A: Yes. But you need to use the 3.5mm cable plug into your TV/PC/Tablet/CD Player/MP3/MP4’s 3.5mm AUX audio port. Then connect with our device.

Q9: Why when I connect with the SY317 , Its have noise or the sound weak ?

A: Its because you used the USB Power supply can not suitable for SY317, You need to change another USB power supply and confirm the USB power supply only support DC 5V output, Can not support 9V/12V or various output.

Package Content
  • 1x Bluetooth 5.0 Audio Transmitter/Receiver Adapter
  • 1x 3.5mm Aux Cable
  • 1x User Manual (No Retail Box!)

Brand Name:
Model Name:
Item Weight:
Material Type:
Special Features:
2 in 1 Bluetooth Transmitter Receiver
Item Size:
Out Power:
Item Type:
FM Transmitters
Model Number:
SY317 Bluetooth Adapter
Feature 1:
Bluetooth Transmitter For TV
Feature 2:
Bluetooth Car Kit Music Adapter
Feature 3:
3.5MM Jack Bluetooth AUX Audio Music Receiver
Feature 4:
bluetooth A2DP Stereo
Feature 5:
For PC TV Speakers bluetooth transmitter tv
Feature 6:
wireless Bluetooth AUX audio receiver
Feature 7:
Support Dropshipping Wholesale and dropshopping
Feature 8:
Powered by USB
Feature 9:
100% High quality
Feature 10:
Each device be tested rigorous before shipped out,Guaranteed 100% Good
Operation Range:
Up to 10m / 33ft (without any blocking objects)
BT5.0, A2DP, AVRCP (receiver mode only)
Pairing name(Receiver mode ):
Transmitter mode:
LED Red light ON
Receiver mode:
LED Blue light ON


We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Free shipping will be shipped by China Post/HongKong Post air mail. Some items can be delivered by EMS/DHL/UPS/TNT/FedEx within 3-9 working days, but you need to pay the extra shipping cost. Please contact us first before placing order.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

Wholesale and dropshipping

For wholesale,we will offer discount or free express shipping which only takes 3-7 days to arrive. For dropshipping, we could send the goods to your customers directly and won't leave information about us if you'd like to.

How long does shipping take?

Shipping time varies by location. These are our estimates when you choose free shipping option:
Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-50 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to change or cancel it, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time (45 days not including 2-5 day processing)
  • If you received the wrong item
  • you do not want the product you’ve received (but you must return the item at your expense and the item must be unused)

We do not issue the refund if:

  • your order does not arrive due to factors within your control (e.g. providing the wrong shipping address)
  • your order does not arrive due to exceptional circumstances outside the control of (e.g. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page.

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so. Please take note that buyer is responsible for all return postage.

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