From PHILIPS
• 5 Gears of vibration frequency can gradually relax the muscles from shallow to deep according to the intensity of the force exerted on the body. • The creative extended arc shape hand can easily massage and relax your shoulders, lower back, back and other parts by yourself. • The rotation speed is as high as 2600rpm, which can reach 10mm Strike Depth to help restore muscle vitality. • Light and extended shock-absorbing handle, it is effortless to hold and use for a long time. • 270min long battery time, no need to charge frequently.