Hign-concerned Chemical: None Input/Output: Coaxial Sound Mode: Hi-Res Sound Mode Category: Speakers Use: HOME<br><br>Input Power(W): 50-99 W Voice Control: Yes Waterproof: No Support APP: Yes Playback Function: mp3,CD Inbox adaptor: Yes Intelligent Personal Assistant: None Audio Crossover: Full-Range Number of Loudspeaker Enclosure: 1 Power Source: AC Channels: 2 (2.0) Battery: Yes Communication: Induction,bluetooth Speaker Type: Portable Cabinet Material: Plastic Power Source: Battery Output Voltage: 3W Support Memory Card: Yes Color: Black Material: plastic<br><br>Package Contents: 1 * 1 * USB Cable 1 * English instruction manual<br><br>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.