Oraimo SoniCare Electric Toothbrush Highlights Cover Material: PC+ABS Rated Voltage: 1.5V Rated Power: 0.3W Battery Type: 1 x AAA BatteryUsage Time: ≥ 120 DaysVibrate Speed: 20,000 Times / Min Size: 216.5 x 19.8 x 22.2mm *oraimo Lab test results