GBB Massage Gun helps stretch recovery through vibration equipment, which can deeply relieve muscle stiffness and soreness and increase blood circulation. It is suitable for athletes, fitness enthusiasts, office workers and the elderly. Get a better relaxation after exercise. Notes 1. Do not impact joints. 2. Don't stay in the same location for too long. 3. Please refer to the instruction manual and schematic diagram for proper use. 4. Please long press the power on button for 1 second and power off. 5. If there is an error, it is because the protection device is activated, please restart it. Technical Specifications: Power: 15W Battery Capacity: 2600mAh 10.8V Charging Time: 5- 6 hours Working Time: 4 - 8 hours Adjustable Level: 5 levels Frequency: 1800 - 3200 rpm Noise Level: 45 - 52dB Ball Head For bulk muscle groups, like waist, back, buttocks, thighs, calves D-Shaped Head For abdominal muscles, neck, spine, Achilles tendon Flat Head For back bulk muscle groups Straight Head For impacting deep tissues such as meridian, joints Read more Package Dimensions: 8.46 x 8.27 x 2.76 inches; 1.1 Pounds Item Weight 1.1 pounds Manufacturer O'Bella 1 x Massage Gun 5 x Massage Heads 1 x USB Charging Cable 1 x Travel Case 1 x User Guide