Smart Bluetooth 3D shocking stereo surround sound quality shocking bass Bluetooth link dual speakers, rhythm light effect, U disk play TF card play AUX audio play FM radio Dual speakers + dual front and rear bass speakers, dual power, truly 360° surround sound Anti-magnetic technology effectively eliminates the annoying "beep" sound caused by the traditional active speaker that is too close to the display or the mobile phone once there is an incoming call or voltage fluctuations, and your clean sound Tuning cavity structure, with 2 full-frequency units + 2 bass diaphragms comparable to HiFi-class theaters Bluetooth version: 5.0 Speaker size: 52mm*2 Output power: 5W*2 Effective distance: 10m Battery capacity: 1200mAh Power input: DC5V Support: TF/AUX/Bluetooth/LED marquee size:400x65x65mm Material:ABS colour:Grey Package Contents: 1 * Speaker 1 * USB cable Only the above package content, other products are not included. Note: Light shooting 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.