1、Bone Conduction Technology: Utilizing bone conduction technology, the pillow speaker delivers sound to auditory nerves through the pillow, gentle and safe, enhancing comfort. 2、10 White Noise: Enjoy 10 sleep aid white noise to help you fall asleep easily, including rain, sea waves, music box, heartbeat sound, lullaby, soft music, forest birdsong, etc., delivering HiFi stereo surround sound for fast sleep. 3、Easy Connection: The under pillow speaker can easily connect to your phone, tablet, and other devices for music enjoyment. Enjoy premium music playback with wireless connection for relaxation. Or enjoy personalized song experience using a storage card. 4、High Performance: With Bluetooth 5.3 chip for stable transmission and quick connection to play music on your phone. The Bluetooth pillow speaker ensures more stable connection, lower power consumption and higher processing performance for clearer sound. 5、Long Battery Life: The sleep pillow speaker features a built in high capacity battery, with Type-C charging port, fully charged in 2 hours for over 20 hours of continuous use Item Type: Bluetooth Under Pillow Speaker Bluetooth Version: 5.3 Bluetooth Transmission Distance: Approx. 10m / 32.8ft Protocols: A2DP, AVRCP, HSP Charging Time: Approx. 2 Hours Playback Time: Approx. 20 Hours (at 70% Volume) Storage Card Slot: Supports up to 128GB Storage Card (Not Included) Battery Type: Built in 300mAh Lithium Polymer Battery (Included) 1 x Speaker 1 x Cable 1 x User Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin