- Key features: - Has three ways to switch, satisfied for all communities - Massage effectively. clean gingivitis and prevent teeth. - The charge can be used for 14 days at a time. - Keep fresher acoustic breath vibration makes paste easily. - Power: 100-240 volts ac-size: 121x68x276 mm. - Charge time: 24 hours. - Working time: 1 hour. - One use time: 2 minutes. - Battery information: lithium-ion. - Battery capacity: 1400 mAh. - Sound wave frequency: VPM31000. **For further product information, please contact Chat Support**