Features 1、PRECISE AND STABLE: The frame is made of iron alloy, lightweight and processed by precise cutting to avoid size errors of manual machines and to ensure size accuracy and stable operation. 2、CURRENT STABILITY: The coil machine uses 10 wraps copper core coil, which designed for coil machine, with stable current transmission. 3、SMOOTH USE: Tattoo coil machine in the use of the process after the hand large angle changes will not appear high and low frequency intermittent sound, the sound is crisp and smooth. 4、EFFICIENT LINER SHADER: Tattoo coil machine has a stable working speed and strength, so that it works for a long time without getting hot. Light weight, strong hitting force, low power, clear liner effect. 5、WORKING VOLTAGE: Our tattoo coil machine normal starting voltage is 3‑3.5V, working voltage is 4‑7V, liner and shader can easily control. Specification Item Type: Tattoo coil machine Material: Iron alloy, electronic components Coil: 10 wrap Starting Voltage: 3-3.5V Working Voltage: 4-7V Frequency: 4. 5V-5.5V 125Hz 5. 5V-6.5V 128Hz Applicable Handle Type: Cartridge needle handle or ordinary handle Applicable Needle Type: According to the handle to choose the appropriate needle Applicable Hook Line Type: Tattoo hook line Package List 1 x Tattoo Coil Machine