Small and Convenient: Product size 61*35*12mm, weight 17g, compact size, easy to carry, You can carry this Bluetooth auxiliary adapter for car. Carry it when you driving travel. Easy to Operate: Connect the Bluetooth receiver to the AUX port of other devices and talk or listen to music via Bluetooth connection; just press the power switch to answer/hang up calls, play/pause music, and also support volume adjustment and song switching. Lossless Sound Quality: Bluetooth transmitter supports MP3, WAV, WMA, FLAC, APE and other specifications of audio resolution, the use of CVC energy noise reduction technology to remove noise, sound quality more clear. Bluetooth 5.3: OQIMAX AUX Bluetooth adapter adopts Bluetooth 5.3, can receive Bluetooth signal within 10m. It is more stable, and let you have a pleasant music environment. 2 IN 1 Bluetooth Transmitter Receiver: This Bluetooth receiver can convert non-Bluetooth devices into Bluetooth devices for wireless connection, suitable for cars, speakers, stereo systems and headphones. Enjoy wireless streaming music.