Specification: Item Type: Toothbrush Material: ABS+PP+PBT Product Power: 1W Rotation Frequency: 12000 Times/Min Power Supply Mode: 1 x AAA Battery (Battery Not Included) Weight: Approx. 72g / 2.5oz Product Size: Approx. 16.5x3.5cm / 6.5x1.4in How to Use: Unscrew the cover with a screwdriver, install an AAA battery (battery not included), and press the button to use it. Package List: 1 x Host 3 x Brush Head 1 x Cover Note: 1. Please allow 01 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 3. Avoid exposure to high temperatures, and store in a ventilated and dry place when not in use.