Match the 3.5mm plug earphone with the Bluetooth function, and the Bluetooth 10 meters can be transmitted without barriers, making it more convenient to listen to songs. Small Bluetooth remote control, you can take full-body photos without the help of others, and take selfies more freely. (Requires operation in (C33-HID) camera mode). Support TF card playback, easy to plug and replace, allowing you to switch at will and experience more flexible. Use 5.0 high-end Bluetooth and support HiFi-level professional audio decoding technology to bring you high-quality music. LCD large-screen display, Bluetooth display, battery display, volume display can all be displayed on the screen. (The display needs to be displayed in TF card mode). Output interface: 3.5mm audio Bluetooth version: 5.0 Bluetooth protocols: AVRCP, A2DP, HFP, Transmission distance: 10 meters Battery capacity: 200mAh, Use time: 6 hours of continuous use Colour:black Material:ABS Size:33.66 x 55 x 16mm Package Contents: 1 x 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.