Neck and Back Massager, Massage Gun, Massage Pillow manufacturer / supplier in China, offering Rechargeable Cr123 Batteries with USB Charger, Lithium Ion 3.7V 860 mAh, USB Rechargeable 18650 Lithium Batteries, 1 Hour Charge Time, Recharge Over 1000 Times, USB Rechargeable 9V Batteries - 4500mwh Lithium Ion, 1000+ Charge Cycles and so on.