Mini portable-easy to use and carry, enjoy massage anytime, anywhere4 adjustable speed levels for different levels of treatmentIncludes 4 head attachments: Spherical Head, U-Shaped Head, Cylindrical Head, Flat Head1 button control-for on/off and speed switching, simple and convenientUSB Type-C chargingPackage Contents1x Massage Gun4x Massage Heads4x Replacement Rubber Rings1x USB Cable1x User Manual""Material: ABS, Metal. Electronic Component, DC MotorInput Voltage: 100-240 VBattery Capacity: 1800 mAhSpeed: 2100-3200 rpm / minRated Power: 2WMassager Gun Weight: 0.8 lbs/0.4 kgCharging Time: 150 minutesUsage Time: 120 minutes