Check the listing for details. Dragonhawk X7 Wireless Tattoo Machine WQP-012. Color: Black, Condition: New. Listed at 162.96 USD. Dragonhawk X7 Wireless Tattoo Machine This is the first machine we have developed with Smart Screen AI. What is smart screen AI? The device is equipped with an intelligent chip that senses the resistance of the needle piercing the skin and adjusts the motor torque in time to ensure the best piercing intensity, and any skin area can be easily colored. Color screen, which can reflect more comprehensive real-time data of the working time, and voltage values, is easy to browse.At the same time, we have conducted data statistics based on the usage habits of various users and preset the preset values preferred by most artists A7: Basic lining level. Suitable for round liner cartridges up to 7RL or for beginners. The preset voltage value is 7V.B9: Advanced lining level. For more than 9RL cartridges or professional tattoo artist use. The preset voltage value of 9VC6: basic shading level. For 9M within the mag cartridge or for beginners to use, the preset voltage value of 6V.D10: advanced lining gear. Suitable for up to 11M needles or for beginners. The preset voltage value is 10VE8: Totem level. Also suitable for totem-style work. The preset voltage value is 8V Specifications:Weight: 180g only machine/ 213g with batteryDiameter: 33mmLength: 135mmStroke Length: 3.5mmBattery capacity: 1800 mAhMotor: M-core brushless motorWorking time：6-7 hoursSpeed: 12V/ 10500 Rpm Package Included:1x Dragonhawk X7 Machine2x Batteries (1800mAh each)1x Charger