1. Material: ABS+PP+TPE 2. Weight: 71g 3. Voltage: 1.5V 4. Dimensions: 158 x 20 x 23mm 5. Number of vibrations: about 12000rpm 6. Power supply mode: 1 AAA battery (need to purchase by yourself) 7. Working status: ultrasonic vibration 8. Features: clean teeth, five working heads, sonic vibration, compact and convenient, LED lighting 9. Function: clean teeth, whiten and brighten, massage gums, remove stains 10. Warm reminder: The working head can be washed with water, but the main unit and base cannot be washed with water