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
