Appease white noise machine

Power source: USB, battery, rechargeable
Function: wireless remote control, timing, music function
Control method: mechanical
Specifications: Q2 Colorful Lunar Light Sleeper
Model: Q2
Voltage input: DC5V=0.5-1.0A
Power: 1W
Battery：Li-ion18650-2000mAh
Battery cycles: 500 times
Use time: 20 hours
Charging time: 2.5-3 hours
Product Size:91*91*135mm
Product weight:230gram