2-in-1 Bluetooth 5.3 receiver for sending 3.5mm AUX high-fidelity stereo music wireless audio adapter, suitable for car kit speakers, headphones and TVs

Product Introduction: 
This product is set as a two-in-one Bluetooth device for receiving and transmitting. The product is very simple and can freely start and receive all audio signals. Through the Bluetooth receiving mode, the music from your mobile phone can be sent to traditional home audio equipment. Through the product's Bluetooth start mode, the TV, CD player, MP3 or other sources can be sent to Bluetooth speakers or Bluetooth headphones, which is more convenient. Due to the low latency technology, this product also supports real-time transmission of sound for online games, TV and movies. The product is equipped with a rechargeable battery, and the battery life is long. It perfectly solves the limitations of audio equipment and extends the transmission functions of various audio equipment. 
Function: 
Power On/Off: Press and hold the power button. After powering on, the blue indicator light will flash. The default power-on mode is receiver mode.
Press and hold the button for 2 seconds to turn off the device. The blue light will go out automatically.
Power Off Function: When the product is disconnected for 5 minutes, it will automatically enter the sleep power mode and the indicator light will go out. 
Receiving mode steps: 
(Applicable to all audio devices with audio input interface)
Matching steps:
A. Turn on the product. This time, in the default Bluetooth receiving status indicator light, the blue light will flash rapidly.
B. Insert the 3.5mm audio cable into the RX earphone Interface. When receiving, the blue light will flash rapidly. Insert the other end of the audio cable into the audio input port of the home audio device.
C. Turn on the Bluetooth function of the mobile phone or tablet, and automatically search for Bluetooth devices. Select and connect the device "T38" from the Bluetooth list.
D. After successful connection, the blue light will be on in the receiving mode. 
Transimt mode steps: 
This product is in the startup mode. Connect to a Bluetooth device (such as a Bluetooth headset), and you can listen to wireless music.
Matching steps
A. Open the product. This time, in the default Bluetooth receiving status indicator light, the blue light will flash rapidly.
B. Insert the 3.5mm audio cable into the TX headset Interface. During the search for the Bluetooth device status, the green light will flash rapidly. Please place this product and the Bluetooth device (such as a Bluetooth headset) within a 10-meter range, and insert the other end of the audio cable into the audio output interface (such as the Interface of the headset) of devices such as mobile phones, tablets, MP3 players, CD players, computers, and televisions.
C. After successful pairing, the green light will be on when in the Bluetooth connection state. If it is not the Bluetooth device you want to connect, you can turn off the unnecessary Bluetooth receiver devices.
(1) Different Bluetooth devices (such as Bluetooth headsets) have different usage procedures and protocols. The search connection time will vary.
(2) If the pairing connection fails or cannot be connected for a long time, you can turn off and re-pair.
(3) This product has a multi-function switch button. Press and hold for 2 seconds to turn on the device. 
Specification:

Product model: T38 Bluetooth version: 5.3
Bluetooth protocol support: A2DP and AVRCP
Support for multiple format decoding: MP3, WAV, WMA, APE, FLAC
Transmission distance: Approximately 10 meters (in an open area)
Charging input voltage: DC 5V
Power supply: 3.7V
Operating time: > 10 hours
Charging time: 2 hours
Signal-to-noise ratio: > 95db
Interface: 3.5mm, Type C
Output interface: 3.5mm
Battery capacity: 200mAh 
Packaging List:

1*2 combined 1 BT 5.3 receiver Send
1*3.5mm AUX cable
1*RCA audio cable
1*C-shaped charging cable
1*User manual