Unlike other hair trimmers, the Ace trimmer is super slim and compact in its design and function. Weighing under 5 ounces, it is perfect for any travel kit along with everyday use. Small but powerful, it is equipped with a rotary motor that runs at 7,500 RPMs and can be recharged with the USB Type-C cord included in the box. USB Type-C port is universal, so it can charge anywhere, any time. The lithium-ion battery offers 3 hours of continued run-time and is fully recharged in 90-minutes. The battery indicator light flashes blue when it needs to be recharged, is a red light while it's charging and is a solid blue light when the charge is complete.