?Noise Reduction & Easy Connection?The Bluetooth receiver adopts upgraded noise cancellation, offering you clear sounds. It is easy to use. OQIMAX Bluetooth adapter can automatically pair with the last connected phone after powered on. Note: In the transmitter mode, during connection, please ensure that there are no other Bluetooth devices around, so that the device can accurately connect your Bluetooth. ?Hands-free Calling & Navigation?Aux to Bluetooth, with a built-in microphone, you can answer / redial / hang up / reject calls via the Multifunction Button. Answer phone calls without picking up the phone, make more safe during driving. OQIMAX AUX Bluetooth adapter also supports broadcasting voice notification from navigation Apps, offering your a extraordinary journey. ?Transmitter and Receiver ?OQIMAX Bluetooth car adapter have 2 modes: Transmitter and Receiver. In receive mode, non-Bluetooth devices such as old car audio system, can play the music that is on your phone via the aux bluetooth adapter. In transmitter mode, Bluetooth devices can receive the sound that on the wired devices. Note: in transmit mode, there is a 1-2 second delay if used to watch TV. ?Bluetooth 5.0 & Stable Connection?Wireless audio adapter adopts Bluetooth 5.0 chip, offers more stable connection, faster transmission, better quality wireless audio experience while listening to music. Wireless Bluetooth Music Receiver maintains a strong connection up to 33ft without obstacles. ?Enjoy Wireless Music? OQIMAX Bluetooth aux adapter can turn your old non-Bluetooth device into wireless, make your Non-Bluetooth devices receive audio wireless from Bluetooth device, or transit the audio to Bluetooth device. Get yourself freedom from the tangle of audio cables, to enjoy music wherever. Bring you different wonderful wireless experience. Travel essential accessory in your car.