This is a lightweight and portable massage gun that comes with four different massage heads. It is a new, unopened item with the shrink film still on. - Model Name: uFiT RELEASER Portable ユーフィット リリーサー ポータブル RELEASERPORTABLEWH - Color: White Specs ● Weight: 235g ● Size: 128 x 87.5 x 35.5mm ● Vibration Frequency: Minimum 650 times/min ~ Maximum 3000 times/min ● Strength Adjustment: 5 levels ● Vibration Amplitude: 8mm ● Charging Time: 3-4 hours (Type-C standard) - JAN Code: 4573597880622 Please check the manufacturer's website for more details. Thank you for looking.