The technical specification :Automatic Frequency Tracking Patented Liquid Pumps, Digital Controlled Function: Scaling, Perio, EndoControl: Wireless foot switchWater Supply: Auto-water supplyHandpiece: LED detachable handpieceWorking conditions:Temperature :5℃-40℃Relative humidity ≤80% Atmospheric pressure : 75KPa-106KPa Power supply:AC adapter: 100-240vac. 50-60Hz. 1 2AMaxOutput: 30Vdc. 1.3A For main unit: 30Vdc. 1.3A Wireless control fool pedal battery: 1.5VX2 Receiving sensitivity: -114dB Primary vibration excursion of the tip: (a)Minimum, 1um, Deviation -50% (b)Maximum. 100um, Deviation +50% Output half-excursion: (a)Minimum, O.1N, Deviation -50% (b)Maximum. 2N, Deviation +50% Vibration frequency of the tip: 25-31KHz Input power: 30VA- 48VA Ultrasonic output power: 3W-20W Period of use: 10 years Fuse: 125V 1.5A Water pressure: O1MPa-0.05MPaWeight of main unit: 0.75kg Weight of adapter: 0.25kg Size: 230mmx 155mm x 56mm 5 Tips: G1, G2, G4, P1, E1