["brand new and high quality\nFeatures:\nOptional RCA and for DC interface for your choose.\nMade of aluminum alloy and ABS material, solid and sturdy, lightweight for you to carry easily.\nWireless design save you more space and reduce danger of stepping on lines, is a top choice for professional tattoo artists.\nEasy to operate with no lines, you will get the practical tool.\nIt is also a great gift for tattoo lovers,good choice for professional tattoo\nThe voltage can be adjusted.\n\nTips: \n1. In order to extend the battery life, it is recommended to replenish energy for the power supply at least once a month. \n2. Purchase Note: Please choose the right connector type. RCA or for DC connector.\n\nSpecification:\nOptional connector: RCA/for DC\nColor: Black\nPower supply: 5-12v\nBattery capacity: 2000mAh\nVoltage: Adjustable -5-12V,±0.1V\nDisplay: LCD\nMaterial: Aluminum alloy and ABS\nSize:app. 88 x 28 x 32mm / 3.46 x 1.1 x 1.25in\nQuantity: 1 set\n\nNote:\nTransition: 1cm=10mm=0.39inch\nNo retail package.\nPlease allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage includes:\n1 x Wireless Tattoo Power Supply\n1 x USB Charging Cable(other accessories demo in the picture is not included.)"]