Features1WIRELESS TATTOO PEN: Ergonomic design, non slip. Compatible with 99% of tattoo cartridge needles on the market. Direct drive system, no need for external tattoo power, foot pedal, clip cord. 2RCA INTERFACE CONVERTIBLE: Multifunctional tattoo pen, can be connected to the RCA clip cord and converted to normal mode, liner shader are compatible. 3CORELESS MOTOR: Built in strong coreless motor, 4?12V adjustable voltage, 2.0A output current, 12V voltage can up to 12000r / m, the machine runs durable and stable. 4LARGE CAPACITY BATTERY: Built in 2400mAh large capacity battery, fast charging, can be fully charged in about 1.5?2 hours without power. High endurance, can continue to work 8?9 hours, suitable for tattoo artists to do a large area tattoo. 5OLED SCREEN: Can clearly display the current tattoo voltage, remaining power, frequency, operating hours, convenient for tattoo artists to observe the tattoo status at any time.SpecificationItem Type: Tattoo MachineMaterial: Aluminum alloy, electronic componentsPower Size: Approx. 147 x 42mm / 5.8 x 1.7inRCA conversion head size: Approx. 123 x 42mm / 4.8 x 1.7inBattery: built in lithium battery 2400mAhProcess: CNC Fine engraving processNeedle Stroke: Approx. 4mm / 0.2inMotor: Coreless motorBattery Interface: Type C interface (USB C) Use Time: Battery output current of 2.0A, can continue to work 8-9 hoursCharging Time: Fast charging, can be fully charged in about 1.5-2 hours without power. Operating Voltage Range: 4-12V Voltage Adjustment Accuracy: Short Press: 0.1V, long press to quickly adjust the voltageOLED Display Content: Output voltage, battery capacity situation, frequency, operation time. Structure: All in one lithium battery pen structure, built in lithium battery, battery parts can be rotated and removed.Needle: Universal 99% of the tattoo cartridge needle on the marketPackage List1 x Tattoo Pen (LOGO Wording Random) 1 x Replacement RCA Interface 1 x USB Charging Cable 1 x Accessory Kit (Accessories shipped randomly)