(The audio cable and TF card needs to be purchased by yourself) Product size: 46 x 46 x 13.5mm Bluetooth version: 5.0 Signal-to-noise ratio: 75db Bluetooth distance: Barrier-free 10 meters Frequency Response: 50Hz-20KHz Output interface: 3.5MM AUX OUT NIC sensitivity: -42db Support 5V/0.1A USB power supply Spring wire: support USB 5V100MA power supply 10m wireless transmission, supporting simultaneous Bluetooth 5.0, built-in antenna design, can achieve obstacle-free signal transmission within 10 meters Color: Black Material: PC+ABS Package Contents: 1 * Car Bluetooth Player 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.