1. 26 white noise sleep music, white noise from nature, including the sound of waves + insects + wind + thunder, etc. 2. Soft breathing light gradient breathing light design creates a comfortable sleeping environment 3. design, with built-in lanyard, can be hung, or the knob can be turned to stand on the desktop. 4. Bluetooth version, can be used with smart Bluetooth connection Parameters: Input voltage: DC 5V/0.5A Working power: 1.3W Speaker: 52M0[-42-5W White noise source: 26 songs Bluetooth: with Bluetooth Decibel: 35-45dB Lighting: stepless dimming Timing: 30mir/60min/90min Charging time: 2H Usage time: 8H Charging interface: Type-C Color: Material: ABS Package Contents: 1 * host 1 * Type-C charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.