Product Name: Tattoo Power Supply Wireless Battery Chargeable DC/RCA Model NO.: DL-P04 Disposable: Non-Disposable Set: Not set Usage: for Cosmetic, Skin Care, Body Art Type: Tattoo Power Supply Material: Plastic Transport Package: Carton Specification: 75mm*32mm*55mm Origin: Jiangsu Product Description Tattoo Power Supply Wireless Battery ChargeableItem code:DL-P04Net weight: 63.3gSize: 75mm (length) *32mm (width - thickness) *55mm (height)Color: 2 colors black red - all blackParameter:Interface:DC/RCAMaterial: aluminum alloyLithium battery: three 550ma lithium batteriesCharging time: fast charging, 1.5-2 hours can be filledUsable time: under the condition of normal 10V voltage, the stable voltage can last for 4 hours; under the condition of 8V voltage, the stable voltage can last for more than 4 hours;Instructions:The device is a power supply, with an input port, an output outlet, a built-in battery, a switch button and five led lights. The functions are as follows:1. The input port provides power to this power supply, and the output port provides power to external devices. The built-in battery is 3 pieces, 550mA/ piece, 3.7v battery. The output current is fixed as 1A;2. Output function, adjustable voltage :(5V, 6.5v, 8V, 9.5v, 11V) every double click on the key, switching voltage changes, the first light of 5V is on; 6.5v only the second light is on; 8V only the third light is on; 9.5v only the fourth light is on; 11V only the fifth light is on; Lights from left to right, a total of five stalls 5 lights,and they cycle in turn;3. When the machine is not on, short press on the key to display the power (short press time: 2-3 seconds) : the first light on represents less than 20% of the power; The first two lights on represents 20~40%; The first three lights on represents 40~60%; The first four lights on represents 60~80%; 5 lights on 80~100%.4. Long press the on key for 3 seconds to start up/shut down. The default output is 5V after starting up.