Koolenry Bone Conduction Speaker Bluetooth Speaker Bone Conduction Sound Box R White Noise Sleep Monitor Sleep Speaker

Powerful 8-hour battery life - 400mAh rechargeable lithium polymer battery, fast charging, long battery life. Bluetoothmode - Adopt high-quality Bluetooth chip, equipped with high-performance chip, faster and more stable, low latency and low power consumption, clearer sound. 3D surround sound - Put it under the pillow, as if you are there, realistic 3D stereo sound quality, presenting you with an extraordinary listening experience. Three-stage timed shutdown - Automatic timed shutdown in three sections of 30/60/120 minutes, easy to set, sleep peacefully. the pillow - Vibration playback, exclusive music, watch short videos, listen to music, not disturb the pillow.