aoben massage gun-technology upgrade professional percussion massage gun, cordless handheld electric massager to relieve deep muscle tissue soreness through comfortable percussion. aoben <p>the professional deep tissue massage gun has 24v brush-less motor</p><p> and quiet glide noise reduction technology that brings a high power</p><p> but low noise experience. you can use it at home, gym,office</p> <p><b> instructions</b></p> <p>-1.small ball (for small muscle groups)</p> <p>-2. large ball (for large muscle groups)</p> <p>-3. flat head (for any parts of the body)</p> <p>-4. fork head (for neck and spine) </p> <p>-5. bullet head (for deep tissue massager)</p> <p>-6. key head:( for back, spine and waist) </p> <p><b>specifications:</b></p> <p>- color: black </p> <p>- weight: 2.5 lb </p> <p>- product size: </p> <p>- charge :110-240v 50/60hz </p> <p><b>package contents:</b></p> <p>- 1x massage gun </p> <p>- 6x massage head </p> <p>- 1x power charger </p> <p>- 1x user manual </p> <p><b>after-sales service:</b></p> <p>if our product appears any quality problem,please feel free to contact us.</p> <p>we will follow up this problem until it is solved properly.</p> <p><b>one year free replacement warranty</b></p> <p>we offer a one-year free replacement service due to malfunctions caused by quality problems. </p>