1、Built-in 2000mAh battery, rechargeable, it can work for 4 hours under 4.5V voltage when it\u0027s full of power and you need to charge it for about 1.5-2 hours. 2、Cost-effective, made of premium aluminum alloy material, its needle length is 2.5mm, durable for using for a long time. 3、Powerful motor, adjustable voltage, it working voltage is 8-9V and its working speed is 9000-10000rpm. 4、Ergonomic design, comfortable to hold, suitable for long-lasting use. 5、Simple operation, just long press it for 3 seconds to turn it on / off. 6、Compact size, convenient to put it in bag and carry. 7、Low heat and low noise, can work for a long time. Description: A great tattoo pen for tattoo. Features: Built-in 2000mAh battery, rechargeable, it can work for 4 hours under 4.5V voltage when it's full of power and you need to charge it for about 1.5-2 hours. Cost-effective, made of premium aluminum alloy material, its needle length is 2.5mm, durable for using for a long time. Powerful motor, adjustable voltage, it working voltage is 8-9V and its working speed is 9000-10000rpm. Ergonomic design, comfortable to hold, suitable for long-lasting use. Simple operation, just long press it for 3 seconds to turn it on / off. Compact size, convenient to put it in bag and carry. Low heat and low noise, can work for a long time. Specification: Brand: Atomus Type: Tattoo Tool Material: Aluminum Alloy Color: Orange, Black, Red (Optional) Interface: RCA Interface Working Power: 8-9V Item Length: Approx. 13.4cm / 5.3in Item Weight: Approx. 180g / 6.35oz Package Size: Approx. 16.5 * 10.5 * 5cm / 6.5 * 4.13 * 1.97in Package Weight: Approx. 324g / 11.43oz Package List: 1 * Tattoo Pen 1 * USB Charging Cable 1 * Tattoo Pen 1 * USB Charging Cable