Bluetooth 5.3 Version: The latest Bluetooth 5.3 technology allows for 33 feet long range transmission and stable connection, giving you a pleasant music environment while drivingEnjoy High-Quality Music: The Bluetooth receiver converts non-Bluetooth devices into Bluetooth devices for wireless connection, allowing you to enjoy high quality music anytime; Suitable for cars, speakers, stereo systems and headphonesPlug and Play: Bluetooth car adapter auxiliary design with ON/OFF switch, when you turn on the switch, it will automatically enter the pairing mode, very easy to useBuilt-in HD Microphone: This bluetooth aux adapter has a built-in HD microphone, just press the power button to answer or hang up, pause or play music, no need to operate the phone interface, so you can drive safelyPremium Portability: The size of this transmitter is very mini, you can carry this adapter with you, and when you need it, you can easily take it out and use it immediatelyNote: Before using the product, it must be fully charged. When establishing a Bluetooth connection, make sure there are no intervening obstacles like walls. If there are, the Bluetooth connection could become unstable or not work at all.(iPad 1st/2nd generation headphones are not compatible)