<b>Product Features</b> <br>The massage gun can effectively target sore and stiff muscles by pressure waves. It can be applied for muscle tissue repair and pain relief, especially before and after workout. <br>The 18650 Li-ion battery functions as core bank and can be able to work long hours. The massage gun features premium cooling system for heat dissipation <br>The massager is set with 3 speed levels, 2400 rmp, 2800 rmp and 3200 rmp. 4 massage heads can be applied for pain relief for whole body including back, neck, foot . <br>The massager weighs 0.83lb and is attached with a portable bag. This massage gun fits pocket well and can be carried for deep relaxation anywhere anytime. <br>Please feel free to contact us by sending us a message when you have concerns or questions . <br><br><b>Warm Tips</b> <br>1. Massage mode display: Please press the button for 3 seconds to switch the massage gun on; Press and hold the switch for 2 seconds to shut down. <br>2. Light signal display: The blue LED displays the first light. With the short press to shift the mode, the second level displays 2 blue lights, and the third level displays 3 blue lights. <br>3. Power charging display: The red light flashes when the battery is charged; The first red light is always on when the battery is fully charged. <br>4. When the battery is low (6.2±0.1V), the first blue l ight flashes 5 times followed by all modes to be turned off. <br><br><b>Specification</b> <br>1. USB output x1: DC 5V/2.1A <br>2. Battery type: 18650 Li-ion battery <br>3. Cell capacity: 5000mAh <br>4. Safety: with a lot of protection designs, whether charging, discharging or standby can easily deal with overcharge, over discharge, high temperature, short circuit.