Neck and Back Massager, Massage Gun, Massage Pillow manufacturer / supplier in China, offering USB Rechargeable AAA Lithium Batteries, 1 Hour Charge Time, Recharge Over 1000 Times, 600 mAh, 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 and so on.