Bluetooth 5.2 Sleep Bones Conduction Wireless Bluetooth Audio Pillows Sleep Artifact Sleep Bluetooth Speaker Green Feature: Product name: Bones Conduction Wireless Bluetooth Speaker Colour:Green 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 features】release 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 artifact, bedtime story, safer without radiation 【Bones conduction technology】placed 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, dual 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 life】500mAh large capacity battery life, about 20hours battery life, 500mAh battery capacity, about 15days standby time, Type-c charging port, 2 hours full charge, easy blind plugging, safe charging, overcharge protection, long-term storage, power consumption slow power 【Timed shutdown】physical buttons, physical button design, easy to understand, timed shutdown 30min/60min, automatic shutdown at free set time, better accompany you to sleep 【Newly upgraded Bluetooth 5.2】faster and more stable transmission, adaptive noise reduction technology, compatible with most devices Package Content: 1x Bluetooth speaker 1x Charging cable 1x Manual