Audio Crossover: Full-Range Waterproof: No Communication: Induction Speaker Type: Portable Channels: 5.0 Battery: Yes Use: Home Power Source: USB Number of Loudspeaker Enclosure: 1 Input Power(W): Less than 25 W Bluetooth Version: 5.0 Total Harmonic Distortion: 1% PMPO: 10W Output Power: 10W Active Noise-Cancellation: Active Built-in Microphone: Yes Frequency Range: 45Hz-20KHz color:White Material:plastic Package Contents: 1 x Bone Conduction Bluetooth Music Box 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.