Rechargeable Muscle Massage Gun

RPM: 8000 R/min Speed Level: 5 speed adjustable Rated Voltage: DC7.4V Rated Power: 20W Rated Frequency: 50HZ Motor: Brushless motor Color: Black, Green, Red, Grey Size: 125mm(L) x 170mm(W) / 4.9″(L) x 6.69″(W) Battery Type: Li-ion Working Hour: 2 Hours