JRL Cordless Hair Trimmer with Turbo Boost Engine and Fast Charging Battery, Patened Smart-Clip and Stay Cool Technolgy,/b>Extended Battery Usage TimePlug in your trimmer for 4 hours of charging, and use for over 7 hours of haircutting usePatented Stay-Cool TechnologyAll NEW Patented Designed Stay Cool Technology keeps the trimmers blades from getting hot for long term usage – keeps blades cool to the touchRust-Free, Long Lasting, Self-Sharpening Titanium Blades – stay sharp for every cutPatented Smart-Clip Technology and Turbo Boost EngineSenses blade resistance and revs up the motor speed and automatically kicks into gear with high speed that deliver maximum power when working with coarse, dense hair textures for faster trims and full body shave downsFast Charging Lithium Ion BatteryCordless beard and hair trimmer for men is equipped with a long-running lithium ion rechargeable battery that last 3 times longer than traditional batteriesLED Lights for Battery StatusThe men's hair trimmer comes with 3 led lights to show battery status, so you always know how much juice you have left in your beard trimmerb>Features4 Hours charging for 7 hours usePatented stay-cool technology – keeps blades cool to the touchRust-free, long lasting, self-sharpening titanium blades – stay sharp for every cutPatented smart-clip technology – senses blade resistance and revs up the motor speedTurbo boost engine automatically kicks into gear when working with coarse, dense hair texturesFast charging lithium ion battery – last 3 times longer than traditional batteries3Led lights to show battery status