Flat tyres are the bane of any cyclist's existence, but the Handheld Electric Tyre Pump eases your pain by providing a simple, easy-t-carry solution to repairing flats and keeping your tyres at optimum pressure anywhere and everywhere. It can inflate any tyre up to 150psi and features a heat dissipation system. It also incorporates a BK2 3900mAh battery, a 3-hour charging time, and has overcharge, over-release, and short-circuit safety protection.