Features: 1.Low noise2. Single water spray, LED handpiece integrate E-generator3. 4-Hole/2-Hole Push Button system Unique electric generator, just a little air can generate sufficient power.Self-illuminated，natural LED light .Can be used without fiber optic system.4. 135°C Autoclavable5. For the LED bulb, continuous use of up to ten thousand hours, don't need to change the pipeline, easy to use; The world dental chair two holes, four holes.Technical : Chuck Type: Push Button Working pressure: 0.25 Mpa to 0.3 MpaSpeed: 280,000-350,000R.P.MSpray: single water Spray Chucking power: 25-45NBur size：Φ1.595-Φ1.600mmNoise: ≤ 70 dBHole: 2 Holes / 4 HolesBEARING: Stainless steel bearingPacking ListHandpiece *1Wrench *1Operation manual *1