‎Use only 100V-240V input and 5V-1.0A output., Avoid charging for a long period of time. Disconnect the power supply immediately after a full charge., Avoid placing the unit in rain or humid place, ke

Dreamegg White Noise Machine, D11 Portable Sound Machine with Night Light for Baby Kids Adults, 21 Soothing Sounds Therapy for Sleeping Nursery Travel, USB Rechargeable Continuous or Timer Baby Gift