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