Bluetooth 5.2 Sleep Bones Conduction Wireless Bluetooth Audio Pillows Sleep Artifact Sleep Baby Bluetooth Speaker Feature: Product name: Bones Conduction Wireless Bluetooth Speaker Colour: Bluetooth name: CE-829V Bluetooth version: 5.2 Connection method: wireless bluetooth/TF card/audio input Product weight: 48.7g/0.11lb Battery capacity: 500mAh Playing time: about 15h Interface type: USB Frequency response range: 100HZ-20KHZ Output power: below 10W Signal-to-noise ratio: 75dB Power supply mode: built-in lithium battery Channels: 2 Number of speakers: 2 Effective distance: 10 meters /394in Operation mode: button Waterproof grade: IPX 4 Descrition: Three main featuresrelease pressure to help sleep, gently sing to help sleep, improve sleep quality. release both ears, no need to wear headphones to say goodbye to the harm of long-term wear. Coaxing baby artifact, baby bedtime story, safer without radiation Bones conduction technologyplaced under the pillows, 360 soft coaxing, industry black technology bones conduction technology allows you to enjoy music 360 , no need to wear it without hurting your ears, lower radiation can also be used by babies, speakers diffuse sound, surround sound , high frequency is clear and transparent, low frequency is full , to meet your pursuit of sound quality Long-lasting battery life500mAh large capacity battery life, about 20hours battery life, 500mAh battery capacity, about 15days standby, Type-c charging port, 2 hours full charge, easy blind plugging, safe charging, overcharge protection, long-term storage, power consumption slow power Timed shutdownphysical buttons, physical button design, easy to understand, timed shutdown 30min/60min, automatic shutdown at set, better accompany you to sleep Newly upgraded Bluetooth 5.2faster and more stable transmission, adaptive noise reduction technology, most devices Package Content: 1x Bluetooth speaker 1x Charging cable 1x Manual