Name: Electric Muscle Massager Model: H1 Power mode: USB Battery: 1100mAh polymer lithium battery Charging time: 4 hours (DC 5V) Working time: can be used continuously for 5-7 hours (depending on the intensity of use) Input voltage: 3.7V Maximum output power: 0.5W Charging interface: type-c Gear position: 3 files Size: 14.6*10.6*3cm Control method: mechanical Applicable parts: neck, waist, hips, legs, back, feet Ergonomically designed, and portable NMES micro-current vibration stimulates muscle spasm massage scraping, micro-vibration, 3-speed intensity adjustable Intelligent induction vibration, vibration strength professional and comfortable long-lasting battery life. colour:silver white Material:Stainless steel + ABS Package Contents: 1 * electric massage instrument 1 * USB cable 1 * Instruction manual 1 * EVA storage box / 1 * electric massage instrument 1 * USB cable 1 * Instruction manual Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.