Brand new and high quality Features: Optional RCA and for DC interface for your choice. Made of aluminum alloy and ABS material, solid and robust, lightweight for you to carry it easily. Wireless design saves you more space and reduces the risk of stepping on cords, is a top choice for professional tattoo artists. Easy to use without cords, you get the practical tool. It is also a great gift for tattoo lovers, a good choice for professional tattooing The voltage can be adjusted. Tips: 1. To extend battery life, it is recommended to replenish energy to the power supply at least once a month. 2. Purchase note: Please select the correct connector type. RCA or for DC connector. Specification: Optional connector: RCA/for DC Color: Black Power supply: 5-12v Battery capacity: 2000mAh Voltage: Adjustable -5-12V, ±0.1V Display: LCD Material: Aluminum alloy and ABS Size: app. 88 x 28 x 32mm / 3.46 x 1.1 x 1.25in Quantity: 1 set Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-2cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Wireless Tattoo Power Supply 1 x USB Charging Cable (other accessories demo in the picture is not included.)