Feature: 1. ERGONOMIC HANDLE: Non slip tattoo handle compatible with most cartridge needles, built in stainless steel positioning ball, 0‑4.0mm stroke adjustable. 2. 4.0MM ECCENTRIC WHEEL STROKE: Fully compatible with motor, low noise vibration, sound only 45‑40 db. Precise direct drive system, no cumbersome accessories and space limitation. 3. RCA ADAPTER: Comes with RCA adapter and tattoo clip cord, which can be used for both wired and wireless, suitable for liner and shader. 4. POWERFUL CORELESS MOTOR: With 4.5‑12V voltage adjustment, the powerful 2.0A output motor easily delivers up to10000r/m at 10V for easy liner and shader, producing long lasting and vibrant colors. 5. 2400MAH BATTERY: Built in 2400mAh battery, 1.5‑2 hours can be quickly filled. High battery endurance, which can continue to work for 7‑8 hours. 6. CLEAR LED DISPLAY: Accurately shows the current tattoo voltage, remaining power, , which allowing tattoo artists to easily monitor the status of the machine. Specification: Item Type: Wireless Tattoo Pen Kit Material: Aluminum alloy, electronic components With Wireless Power Machine Size: Approx. 145 x 42mm / 5.7 x 1.7in With RCA Conversion Head Machine Size: Approx. 125 x 42mm / 4.9 x 1.7in Battery: Built in lithium battery 2400mAh Process: CNC fine engraving Stroke: Approx. 4mm / 0.16in Needle Length: Approx. 0 ~ 4mm / 0 ~ 0.2in adjustable Motor: Coreless motor (Approx. 26 x 10mm / 1 x 0.4in 10V 10000rpm) Battery Interface: Type c interface (USB C) Use Time: Battery output current of 2.0A, can continue to work 7-8 hours Charging Time: Fast charging, no power state can be fully charged in 1.5-2 hours Operating Voltage Range: 4.5-12V Voltage Adjustment Accuracy: Short Press: ±0.5V Long Press: for fast adjustment LED Display Content: output voltage, battery capacity situation Structure: All in one lithium battery pen structure, built in lithium battery, battery parts can be rotated and removed Needle: For 99% of the tattoo cartridge needles on the market. Package List: 1 x Wireless Tattoo Pen1 x RCA Adapter1 x RCA Clip Cord1 x USB Charging Cable1 x Accessories Package (accessories shipped randomly)1 x Storage bag