Feature:1. Lithium batteries are equipped with Electronic Cell conservation (ECP), which can prevent lithium batteries from overcharging and overloading and improve battery life.2. 5 speed speed adjustment, the speed from low to high, basic to meet different needs.3. The machine has novel appearance, exquisite workmanship, suitable for handheld operation, convenient and High quality.4. The machine uses 2000mah large capacity power batteryUSB charging port design, support quick charging.5. The machine with lighting, for stone lovers to design, also can be used for emergency lighting.6. It is ideal for kinds of material engraving and grinding, such as wood, stone, peach-pit, egg, crafts, ,ceramics, and etc. Manual sculpture, polished jade, stone, , wood, computer case, circuit boards, PC material drilling.Specification:Color: Orange/Green/GrayOptionalVoltage: 3.7 VLoad power: 35WMaximum current: 5ASpeed: 3/6/9/12/15*1000 rpm3000-15000rpmBody Material: ABSClip Head Diameter: 0.5~3.2mmBattery: 2000mAhLithium batteryProduct Size: 18*3.25*2.85cm/7.09*1.27*1.12in.Package List:1 * Electric grinder1 * accessories box1 * USB charging line1 * instructionNote:Please refer to the actual product for the parameters, The outer packing is for reference only.