2 in 1 Bluetooth 5.3 Audio Adapter: The Bluetooth-5.3 audio transmitter receiver can transmit audio from non-Bluetooth-compatible audio sources (TV, PC, MP3, CD player or book reader, etc.) to Bluetooth-compatible headsets and speakers. And you can also make your non-Bluetooth-compatible headsets and speakers receive audio from Bluetooth-compatible audio sources (mobile phones, tablets, etc.). You can easily switch between transmitter and receiver modes with the push of a button. Support Dual Stream,Multipoint Connect:Bluetooth transmitter function,can connect 2 Bluetooth headsets at the same time.Bluetooth receiver function,can connect 2 smartphones.Auto On: When you connect to the power, So its very good for to use in car or other you want it have auto on functions. Easy to Use: Just tap the switch to switch between transmitter and receiver modes. Easy connection using advanced Bluetooth technology and 3.5mm audio cable (included) and Audio Cable. Bluetooth 5.3+: By inserting a Bluetooth adapter into a non-Bluetooth-compatible device to achieve wireless connection with Bluetooth-compatible devices. It can be stably connected to , stereos, PCs, MP3s, cars, speakers, earphones, smartphones, tablets, and reaches a maximum range of 50 feet (15m) outdoors and a maximum range of 33ft (10m) indoors. Space-Saving Design: Ultra-compact and for convenient use with a variety of devices. Auto-Connect: This Bluetooth Adapter will automatically connect to the last paired Bluetooth device when you turn it on time. Super Stable Connection: Our Bluetooth audio adapter is fitted with a Bluetooth 5.3 chip for steady pairing, fast transmission and a wide signal range (33 feet). With the 3.5mm AUX port and 2 port, it can be connected to non-Bluetooth car audio systems, home stereo, wired headphone/spe, Amplifier/Home Theater.etc. Then you can enjoy wireless Hi-fi music streaming! Receiver Mode For: Car Kit/Wired Speaker/Home Speaker/Speaker Power amplifier/Headphone ... Transmitter Mode For: TV/PC/Projector/Power amplifier/TV Box /Bluetooth Headphone/Earphone/Bluetooth Speaker ... Type: Multipoint 2-IN-1 Bluetooth Audio Adapter Input Voltage: DC 5V Transmission Distance: Maximum of 10 meters/33 feet (no obstacles) Bluetooth Version: 5.3+ Interface: 3.5mm AUX Stereo/ 2 Stereo Audio Mode Switching: Switch the mode by switching the Button TX/RX switch. Size: About 110x26x60mm Colour:As Shown Material:Plastic Package Contents: 1x Multipoint 2-IN-1 Bluetooth 5.3 Audio Adapter 1x 3.5mm Aux Cable 1x TypeC Charge Cable 1x Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.