RELIEVES MUSCLE SORENESS: The massage gun helps relieve muscle soreness and stiffness with 7 interchangeable head attachments.QUIET MASSAGE GUN: Quite quiet during working, only about 40- 50dB, 6 speed settings ranging from 640 to 3,200 rpm meet different muscle group, provide great deep tissue massage.ADJUSTABLE SPEED SETTINGS: 5 Speed levels meet different body parts massage needs great for neck back arm leg muscle massage. Awake your whole body muscles, from daily massage to deep massage.LONG BATTERY LIFE: The Mebak massage gun equipped with a 2600mAh Lithium battery, lasts from 2-3 hours massage use on a single charge (depending on your massage intensity you use). Charging voltage rate is 100V-240V 50/60Hz Max 0.5A.LIGHTWEIGHT: only 2.1 lb; Gross weight 3.3lb with portable carry case, you can take the massage gun everywhere. PACKAGE LIST: Massage Gun*1 ; Massage Head * 7; Charger Adapter *1 ; User Manual * 1; Travel Case * 1.