Fashion and modern, innovative metal diaphragm, TWS two interconnection, designed for the left and right channel output, 20H music playing time tone, AI human-machine interaction The use of full frequency 40mm horn and bass diaphragm sound clear and thick, HIFI shock enjoyment, 360 3 speakers surround sound, realistic sound experience, can the sound quality is clear Support computer and mobile phone Bluetooth playback, voice call without enhancement, TWS series, AUX, U disk, TF card (after inserting TF card Horn specifications: Diameter 40mmx3 Bluetooth version: 5.0 Audio noise ratio: 80db Frequency response: 100HZ-20KHZ Transmission distance: 10M Power: 3 5W Voltage: 5V or 1A Battery capacity: 2200mAh Waterproof class: Not waterproof Charging: TYPE-C Charging time: 4-5H Playing time: 20H Colour:black Material:MetalandPlastic Package Contents: 1 x Bluetooth Speaker 1 x USB Cable 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.