A multi-functional massage gun with a new upgrade, deep muscle Myofascial relaxation, release fatigue, effectively reduce muscle stiffness and soreness, promote blood circulation, maintain health, prevent inflammation caused by adhesion between the fascia and muscles. Give you the most professional massage and intimate care. 6 ADJUSTABLE SPEED & 4 REPLACEABLE MASSAGE HEADS -- The percussion massage gun features a multi-frequency vibration design, one-click start, 6 adjustable speed, to meet all muscle relaxation needs. Four massage heads of different shapes help users relax different parts of the body. Fork head: for the spine and neck; Flat head: for any parts of the body; Bullet head: for joints; Round head: for large muscle group. THERMAL VENTILATION & ULTRA-SILENT -- The hyper-volt massage device with high-efficiency thermal ventilation design reduces heat during use and improves performance. With high-quality brush-less silent motor, less than 45-db low noise design. (note: with long press of the power key the massage gun power on; when you need to shut down, touch the power key after adjusting to 6th gear. If it is not in the 6th gear, long press the power key, will enter a 10-2-second restart) SUPER BATTERY LIFE & AI SMART CHIP -- The deep tissue muscle Massage device built-in high capacity 24-V-2000-MA lithium battery, one-time charging, can be long-running, long battery life.With AI smart chip, humanized intelligent interactive experience, press feedback system, it is safer to adjust the output power of the motor according to the pressure. APPLICATION & ERGONOMIC DESIGN -- This handheld vibration massage gun is ideal for muscle soreness after fitness exercise, muscle strain after high-intensity workouts, and physical and mental exertion after sitting in the office. The ergonomically designed handle minimizes external vibration, and makes the massage gun is easier and more comfortable. Ideal as a gift, if you have any questions and are not satisfied, please contact us by email and we will provide you with quality assurance. Satisfaction and lifetime guarantee or your money back. This heavy duty therapeutic deep muscle massage Device is built to last! Package: 1x Massage Gun 4x Massage Heads 1x Charger 1x User Manual 1x Portable Bag Parameter: Size: 8.66*8.58*2in Vibration frequency: 50-60Hz Input voltage: 110-240V Speed: 1200-3300 rev / min Rated power: 20W