Pillow Side Sleep Aid Speaker Ultrasonic Sleep Aid High Dynamic Sound Quality Under Pillow Bluetooth Speaker TF Card Player

Voltage range : USB (5-20V DC) High-concerned chemical : None Input/Output : USB Sound Mode : Other Category : Speakers Use : Home Input Power(W) : <25 W Voice Control : No Waterproof : No Support APP : No Inbox adaptor : NO Intelligent Personal Assistant : NONE Audio Crossover : Full-Range Number of Loudspeaker Enclosure : 1 Power Source : Battery Channels : 1 Battery : Yes Communication : Bluetooth Speaker Type : Portable Cabinet Material : Plastic Brand Name : amzwn Power Source : Battery Origin : Mainland China