Low noise, large torque, vibration free, heating free and high illumination Push button, Triple water spray, LED handpiece integrate E-generator 4-Hole Push Button system Back siphonage prevention sanitation handpiece Professional LED light source, superior brightness, longevity 1000 hours Unique electric generator, just a little air can generate sufficient power Technical specification: Body size:L134 * H17 Head size:Ø 12.5 * H14 Bur size:Ø 1.6 Chucking power:20-45N Spray:Internal triple spray Chuck:Push button Sterilization by autoclave at (135) 0C Noise level: ≤70 dB Air Pressure:0.22–0.3 MPa Rotate speed:250,000–350,000 r.p.m