3.5mm Car AUX Bluetooth Wireless Stereo Audio Music Receiver Adapter Features: 1. 2 In 1 TRANSMITTER RECEIVER MODE: 2in1 design, by using this wireless adapter, you can send and receive all of the audio freely and easily. Transmitter enables your TV, AV Receiver, Radio and other home audio source devices to stream music to your Bluetooth headphones or speakers; Receiver lets non-Bluetooth devices like your home stereo or AV Receiver and wirelessly stream music from your cellphone/PC. 2.Unique 3D Surround Sound Function: With the 3D audio button, you can switch to 3D mode to enjoy the surround sound with High Fidelity from a normal audio source. Its advanced internal chip takes charge of the conversion to make it possible, using convenient lossless codes. 3.Dual Device Link: Simultaneously pair your smartphone and tablet and stream music from either one with any stereo system that supports a standard 3.5mm or RCA jack.Connect two Bluetooth devices at once to listen to music, make phone calls, and more. 4.Connect two devices:Support to connect with 3.5mm audio port and 1 RCA audio port at the same time. 5.Wireless Music Streaming:Stereo stream music to non-Bluetooth headphones and speakers. 6.Space-Saving Design:Ultra-compact and lightweight for convenient use with a variety of devices. 7.Super Stable Connection:Our Bluetooth audio adapter is fitted with a Bluetooth 5.0 chip for steady pairing, fast transmission and a wide signal range (33 feet). With the 3.5mm AUX port and 2 RCA port, it can be connected to non-Bluetooth car audio systems, home stereo, wired headphone/speaker, /Home Theater.etc. Then you can enjoy wireless Hi-fi music streaming! 8.Auto-Connect: This Bluetooth receiver will automatically connect to the last paired Bluetooth device when you turn it on the next time. 9.Built in battery, RX