12 Months Warranty Stroke: 3.5mm Needle Depth: 0-4.0mm Motor: DC motor Swiss motor No-load speed: 11000 rpm Voltage output: 5.0V-12.0V Recommended working voltage: 5.5V-7.5V Battery capacity: 1300 mAh Support working time: 3.0 hours-5.0 hours Charging: Type C fast charging Characteristics: Designed for permanent makeup and tattoo. Enlarged display screen to show more complete information. Tactile keys are more durable than mechanical ones. Exclusive non-slip handheld design in a variety of colorsOCP overload and short circuit warning. Dimensions: Size: 18-27*135mm Weight: 137g Includes: BRONC MAGIC Wireless Pen Type-C Charging Cable RCA Adapter Replacement O-rings USB Plug Color Box