Note: This instrument is only suitable for specially equipped 5V charger, other chargers (such as 12V or higher voltage charger) are strictly prohibited to use. specification: Item Type: Tattoo Pen_x000D_Material: Aluminum Alloy + High precise steel_x000D_Plug: EU 110-240V DC 5V _x000D_Battery: Built-in lithium battery 600mAh_x000D_Needle: A7_x000D_Needle Length: Approx. 0 ~ 2.5mm / 0 ~ 0.1in_x000D_Maximum Speed: 22000-35000rpm_x000D_Speed: 5 Speed control_x000D_Length: Approx. 133mm / 5.2in (without needle)_x000D_Maximum Body Diameter: Approx. 20mm / 0.8in_x000D_Application: Eyebrow, eyeliner, lip, small tattoo, MTS_x000D__x000D__x000D_Usae: _x000D_1. Fully charge the machine._x000D_2. Install the needle that will be used._x000D_3. Rotate the body with the scale line area to adjust the needle length, the needle length range is 0-2.5mm._x000D_4. Long press the switch for 3 seconds to start the machine, and the LCD screen can observe the current speed and remaining power._x000D_5. The speed can be adjusted by pressing the switch in the power-on state, and the speed can be adjusted in 5 levels._x000D_6. If you want to shut down, long press the open key for 3 seconds to shut down._x000D_8. After turning off the machine, remove the needle. The needle is for one-time use, clean the machine, put it in an appropriate place, and keep it well stored. Features: 1Space aluminum alloy shell, strong and durable, light weight and comfortable grip as well as anti?slip when holding. 2The length of the needle can be adjusted within the range of 0?2.5mm by rotating the body with the scale line, convenient to operate, safe and fast. 3Equipped with coreless motor, speed is faster than the ordinary motor, long lasting time and not hot, shock absorption, strong stability. 4Silent technology, reduce the sound of the motor to release your tension feelings and make you enjoy the quiet tattoo process. 55 Speed adjustment, one?button control, LCD display can display the current speed and remaining battery power. 6Firmly lock needle, no fly needle, no ink jet, high color efficiency; USB charging wireless design, built?in large capacity lithium battery. PackageList: 1 x Tattoo Pen 1 x Charging Head 1 x USB Cable 2 x Tattoo Needle