Mini Sleeping Bluetooth Speaker Under-pillow Personal Audio Wireless MP3 Music Player Ultra Thin Speaker Long Battery Life

High-concerned chemical : None Input/Output : USB Sound Mode : Immersive Sound Mode Category : Speakers Use : others Input Power(W) : 200-299W Voice Control : Yes Waterproof : No Support APP : No Inbox adaptor : No Intelligent Personal Assistant : None Audio Crossover : Full-Range Number of Loudspeaker Enclosure : 1 Power Source : USB Channels : 2 (2.0) Battery : Yes Communication : Induction Speaker Type : Portable Cabinet Material : PVC Power Source : USB Origin : Mainland China