[Clearer Calls]The AUX Bluetooth car adapter is equipped with microphones to collect your voice from 360 for smoother calls. [Innovative LED Digital Display] Another unique feature of this portable Bluetooth stereo adapter is its LED screen. On it, know the current status of various functions like the volume levels and exact power quantity. It can remind us to charge in time so that without interruption. Ease of use, no distractions, and driving. LED lights easier to find buttons when night falls. [16H Super Long Battery Life]This car Bluetooth adapter has a built-in rechargeable battery with a battery life of 14-16 hours. And it takes only 2 hours to fully charge the device by using a Type-C fast charging cable. The actual object may have color difference due to different light or display Colour:Black Material:ABS Package Contents: 1x Bluetooth receiver 1x audio cable 1x charging cable 1x audio adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.