Innovative Bone Conduction TechnologyExperience music without disturbing others or damaging your ears, perfect for a peaceful night's sleep. Sleep-Enhancing DesignSpecially crafted to improve sleep quality, this device allows you to enjoy soothing music without the discomfort of traditional earphones. Easy to UseSimply place under your pillow and turn on for instant relaxation, no need for wearing or inserting anything into your ears. Versatile ControlsConvenient touch controls for power, playback, volume, and track selection, with additional features like MP3 mode and 1-hour timer. Bluetooth-compatible 5.0 ConnectivityEasily connect to your devices with a stable Bluetooth-compatible 5.0 connection, offering a range of up to 10 meters. Specifications: Product size: 15.5*3.8*1.3cm Charging voltage: 5V/1A Working voltage: 3.7/4.2V Battery capacity: 300mAh Bluetooth-compatible version: 5.0 Bluetooth-compatible distance: 10 meters Interface: Type-C Charging time: 2 hours Playing time: 8 hours Charging voltage 5V/200mA Charging status: Red light is always on, Connecting: Red and blue lights flash, Connected: Turn off the light Package included: 1 x Under Pillow Speaker 1 x Charging Cable 1 x English Instruction Manual Other items not include