Product Parameters: Input voltage: 5V=1A Battery capacity: 500mAh Rated power: 3W Charging time: about 2 hours Color: White + Black Material: ABS Host net weight: 110g Host size: 12 x 6 x 3.5cm Package contents: 1 x Electric Hand Massager 1 x USB Charging Cable Only the above package content, other products are not included. Note: Light reflection 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.