L20 15W Transparent Luminous 6D Stereo Wireless Bluetooth Speaker(Black) Filter-Adapter please confirm whether the motherboard

please confirm whether the motherboard has a USB3

Dual-port power supply

The interface is lengthened and reinforced to reduce the risk of fracture

Carton Size 54cm * 50cm * 47cm / 21

L20 15W Transparent Luminous 6D Stereo Wireless Bluetooth Speaker(Black) Filter-Adapter please confirm whether the motherboard1. Product size: 170x145mm 2. Bluetooth version: V5. 0 3. Effective distance: 10m 4. Speaker specification: 40mm; External magnet: 15W 5. Battery capacity: 4000mAh 6. Charging time: about 2H 7. Playing time: can play about 6H 8. High fidelity sound quality, halo effect, 360 degree surround sound 9. U disk, TF card music playback, support MP3, WMA, support auxiliary input 10. It can automatically change colors, race horses and dazzling lights, follow