Equipped with four different shapes of?massage heads, the massager has four adjustable levels to relax your muscle, a perfect fitness equipment to maximize your exercise effect.<br/>Features:<br />Level Adjustment: 4 levels for selection, from low to high, meeting different needs, you can choose the ideal speed for muscle relaxation.<br />Safe Energy-saving Lithium Battery: Rechargeable lithium battery, make it can be used for a long time.<br />4 Replaceable Massage Heads: 4 Massage heads in different shapes are included, U head, Cylindric head, Ball head and Flat head, which is designed for various body parts.<br />Simple Operation: Easy and convenient to use, with on-off control. Long press the button for about 2s and short press for 1s to adjust the speed, very simple to handle. And 4 adjustments are optional.<br />Keep Silent: Make little noise when massaging and give you a powerful massage experience with high speed and frequency.<br />Rational Design &amp; Portable: Unique non-slip design handle, easy to carry and grasp.<br/>Specifications:<br />Material: ABS, metal<br />Model: J2<br />Color: Blue and black<br />Level: 4<br />Rotating Speed: 1600-2800rpm<br />Battery Capacity: 2000mAh<br />Charging Time: approx. 200min<br />Battery Life: approx. 400min<br />Rated Voltage: 8.4V<br />Rated Current: 1.5A<br />Rated Power: 12.6W<br />Motor Power: 33.3W(Max)<br />Max Noise: 50db<br />Package Size: 16.5 x 17.5 x 6cm / 6.5 x 6.9 x 2.4in<br />Package Weight: 900g / 2lb<br/>Package List:<br />1 x Massager<br />4 x Massage Head<br />1 x Type-C USB Cable<br />1 x Manual