1. Innovative bone conduction technology says goodbye to traditional headphones. It helps you fall asleep easily, avoids drug dependence and side effects, and gently helps you sleep. It transmits music directly to the ears and brain through vibration, reducing the discomfort of wearing headphones for a long time. 2. It does not disturb the person next to you. The vibration is played alone. The sound is transmitted but not to others. You can watch short videos and listen to music alone in your "concert hall" without disturbing the person next to you. 3. 10 kinds of white noise to help you sleep and help you fall asleep, so that you can say goodbye to negative emotions. Different sound scenes can make you feel calm and fall asleep peacefully. 4. Timed shutdown allows you to sleep peacefully, automatically shut down at a scheduled time, and you can easily set it. You dont need to get up at night to operate, and you can sleep until dawn. 5. Bluetooth 5.4 mode, fast intelligent connection speed, using high-quality Bluetooth chips, equipped with high-performance chips, faster and more stable, low latency and low power consumption, clearer sound. Color: white/gray/pink/blue/green Bluetooth version: 5.4 Power: 300mAh Charging: about 2 hours time Speaker: vibrator sound Play time: 8H & 70% volume Distance: Bluetooth 10 meters Input: 5V/300mA Talk time: not supported Function: Make the pillow sound through bone conduction technology Display: volume, timing, power, play mode, Protocol: A2DP, AWRCP, HSP, HEP Volume: 16.5cm*4.5cm*1.4cm Supports maximum TF card up to 32G" Single set weight: about 150g Single set contains: speaker*1 data cable*1 manual*1