Features: Operates at 16000 oscillations per minute Voltage: 110 or 220 (50/60Hz) Saw blade made of imported material with advanced manufacturing technology Rapid cutting during operation to ensure regular cutting surface and greatly reduce temperature rise of bone surface. By means of internationally common multipoint pressing joining method, resonance phenomenon from single point pressing joining adopted in domestic medical power is well solvd, and cutting process is more precise. With high-capacity battery and it can be discharged for 3.5 hours The two laser battery can be recharged at the same time. CE, Certificate of ISO9001:2000