(The audio cable and TF card needs to be purchased by yourself)Product size: 46 x 46 x 13.5mmBluetooth version: 5.0Signal-to-noise ratio: 75dbBluetooth distance: Barrier-free 10 metersFrequency Response: 50Hz-20KHzOutput interface: 3.5MM AUX OUTNIC sensitivity: -42dbSupport 5V/0.1A USB power supplySpring wire: support USB 5V100MA power supply10m wireless transmission, supporting simultaneousBluetooth 5.0, built-in antenna design, can achieve obstacle-free signal transmission within 10 metersColor: BlackMaterial: PC+ABSPackage Contents:1 * Car Bluetooth PlayerOnly 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.