14MM PROFESSIONAL STRIKE DEPTH - As a specialist for sore or sensitive muscles, it is the go-to for super sore days. Our massage gun is equipped with imported AI smart chip, and delivers 14mm high-frequency vibration and deep massage therapy, which helps to activate muscle groups within 30s and relieve muscle pain within 2 mins180 CUSTOMIZED MASSAGE THERAPY - With 6 professional massage heads that easily target muscle knots in various parts of the body and take care of every muscle group, 30 speeds delivers the moderate strength, accurate depth, intensity for specific muscle groups and 180 unparalleled massage experiences2600mAh HIGH POWER BATTERY - Our back massager gun boasts 120 days ‘fight’ of 2 hours charging with up to 20000 hours of total life, thanks for the 2600mAh 5C power lithium battery certified by international UL and ST chip produced by STMicroelectronics45lbs POWERFUL BRUSHLESS MOTOR - Our deep tissue muscle massage gun adopts a high-speed brushless motor that up to 3200RPM speed and packs a formidable punch with 45 lbs of stall force, and creates high-accuracy CNC alloy transmission component to achieve N-Shock Dynamic Balancing Technology, bringing about stronger vibration, noise reduction4 HUMANIZED DESIGNS - The deep muscle percussion massager features bird-shaped heat dissipation vest that keeps the safety of the motor and prolong its life, the 180° rotatable handle that reaches more than 90% of the parts and effectively massage the back blind area by yourselves, and features HD touch full display screen and timer function that helps to control the massage time reasonably.