Portable USB Sleeping Instrument

Portable Sleeping aids
Type: Insomnia therapy device
Material:ABS+stainless steel
Color: Green, yellow, white
Weight:55g
Size:68.5*38.5*40.5mm
Features: Portable, easy to operate, relieve fatigue
Power supply: USB charging
Battery capacity: 500mAh
Work technology: Electromagnetic wave
Treatment time: 15minutes
Certification: ISO|RoHs|FCC
OEM|ODM: Welcome