Product parameters:Model: 109PRO Material: Aluminum alloy Power: 15WSpeed: 0-35000rpm Output voltage: DC2-5V Input voltage: AC 100V~240V 50/60HZColor classification: red/blue/grayconfiguration list:1: Host 2: Charging base 3: USB charging cable 4: Standard configuration 5: Grinding head 6: English manualProduct 1. High-quality manufacturing: Made of aluminum alloy, it has excellent wear resistance, corrosion resistance and thermal conductivity, which can effectively improve the service life of the machine.2. High-efficiency work: 15W power and 0-35000rpm speed can meet your needs for high-efficiency grinding.3. A variety of colors: Red, blue and gray are available in three colors, allowing you to choose the most suitable color according to your preferences.4. A variety of accessories: complete accessories, including the host, charging base, USB charging cable, standard configuration and grinding head. The standard delivery also includes additional grinding heads for different situations.