ONYX Professional Cordless Hair Clipper Patented Reset IQ Charge Technology - A new way of charging that extends the battery life. This design will consistently charge to 100% even after extended use. 3 Hours For Regular Charging, 5 Hours for Reset IQ Charging. Patented Smart-Clip Technology - Clipper senses blade resistance and revs up the motor speed, therefore clipper will never drag or stall. Guarantees a smooth even cut every time. Constant Power - 2-Adjustment speeds for cutting versatility, 6,000 & 7,500 RPM and maintains speeds during run time. Equipped With Onyx Fade Precision Blade - Helps get the fresh fade look, Max. length: 3.5mm Quiet Motor - Creates a quiet work environment Max 5 Hours Run Time - 3 Hours charge produces 5 hours battery life Advanced Lever Locking Feature - 5 Steady level locking adjustments with infinite variable control that maintains over long term use. Patented Cool Blade Reset IQ Charging Dock Is Included ONYX Professional Cordless Hair Trimmer Patented Onyx EZ-GAP M Blade Ensures Clean, Flawless Zero Gaps Every Time Patented Smart-Clip Technology Trimmer senses blade resistance and revs up the motor speed, so the Trimmer never drags or stalls trimmer will not drag or stall 3.5 Hours Run Time 8200 Revolutions Per Minute Superior Motor Lasts Up to 1,000 Hours 360˚ Exposed Ultra Sharp T-Blade Ideal for lining, designing and dry shaving allowing barbers to cut trouble free. Comes with charging dock