Features & details Turn your car into a streaming machine: featuring the latest Bluetooth 5. 0 technology, the Bolton Audio receiver plugs into your car audio aux input and pairs with your favorite Bluetooth enabled device to stream your favorite music. With a built-in microphone, Our device also allows you to enjoy crystal clear sound quality on all of your calls. Enjoy wireless music: even your old Boom box can be Bluetooth enabled with Bolton BT-BR001! Simply connect to your wired speakers or headphones with the included 3. 5mm Audio cable, Pair it to your phone or tablet and enjoy CD-quality sound for all of your music or calls. Support apt HD: using Bolton aptx-hd car kit, wirelessly stream 24bit music quality for a “better-than-cd” listening experience. Standard CD quality Only is 16bit. Works with any aptx-hd Bluetooth device (E. G. Headphones, speakers) to stream audio in high definition. Longer battery life: immerse yourself in your music or conversations with up to 15 hours of play time and up to 120 hours of standby! Simply use the included USB charging cable, plug into your car charger, or PC USB port. The device only needs 1. 5 hours to fully charge and you can be back on your way to streaming freedom.