•Small size wireless electric muscle massager, easy to carry and use •4 different massage heads, massage different body parts, giving the body perfect relaxation •4 speeds of vibration adjustment can meet different usage requirements •Brushless motor, low noise work, enjoy the quiet massage experience •Deep muscle massage to break down the accumulation of lactic acid •Effectively relieve all kinds of pain, accelerate blood circulation •Suitable for shoulder, chest, abdominal, back, gluteal and leg muscles •Built-in 2000mAh large battery provides long using time Specification: •Model: QY-M13 •Motor power: 20W •Motor torque: 0.55 •Frequency: 1500-2400rpm •Vibration Speeds: 4-gear adjustment •Lithium battery capacity: 12V 2000mAh •Motor type: brushless •Battery removable: No •Using time: 3-6 hours •Turn on/off method: button •Power supply mode: Rechargeable lithium battery •Noise: lower than 55dB •Massage heads quantity: 4 Package included: •1 x Muscle Massage Gun •4 x Massage Heads •1 x USB Charging Cable •1 x English and Chinese User Manual