Mini MUCSLE TISSUE FASCIA Massager 1.Battery capacity: 2200mAh 2.Rated voltage:7.4V 3.Rated power:25W 4.Charger input:100-240V-50/60Hz 5.Charger output:5V 2A 6.6 Massage heads 7.Intensity: 5 levels speed 8.Brushless silent motor 9.Charging time:3 hours 10.Using time: 4 hours when full charging 11.Timer:10 mins