Settings: 20 Intensity Settings from Soothing Vibration to High-Power Percussion Massage New 4-head massage technology: dual unit drive, 4-head linkage relaxation area larger, 28KG strong power, 13800Max percussion/mins, 20MM massage depth. The 20 Intensity Settings from Soothing Vibration to High-Power Percussion Massage New 4-head massage technology: dual unit drive, 4-head linkage relaxation area larger, 28KG strong power, 13800Max percussion/mins, 20MM massage depth. The relaxation area is up to 22300 square millimeters, with a larger relaxation area and higher efficiency. Great Christmas Gifts Choice: JaYouhe 4-head deep muscle massage gun is suitable for everyone from professional athletes to recreational gym-goers. Comes with original packaging. It is an ideal gift for Birthday, Christmas, Valentine's Day, Mothers Day, Fathers Day, and so on. Upgraded Powerful Muscle Massager - We are dedicated to offering a more exquisite and intense full body muscle massager gun; this multifunctional massage machine can help awake your muscles, accelerate muscle recovery, relieve muscle pain, reduce lactic acid accumulaion, encourage blood flow and improve joints' flexibility ect. Long Battery Life: 2000mAh large capacity battery, equipped with USB-C charging cable, can be used up to 2 hours after full charge. Note: Please fully charge the massage gun before first use. To protect the battery and motor, do not open the massage gun during charging.