This tyre inflator can inflate a 13" tyre in approx. 2 minutes and a 22" tyre in approx. 5 minutes2)3. The auto stop function and the deflator valve help to keep the tyres optimally inflated. This can also reduce the risk of over- or under-inflation and the resulting possible damage to the tyres. The TYREinflate 830 has a 4-metre power cable for the accessibility to all four tyres and plugs directly into your vehicle's 12-volt socket. The backlit LED display and integrated LED light provide improved readability of the pressure settings and improved illumination of the working area even in reduced visibility conditions or at night. Also included are three adapters for inflating sports balls and other small inflatables and a storage bag to protect the unit and store it neatly.OSRAM offers a 2-year guarantee1) on this product.1) For precise conditions please refer to: www.osram.com/am-guarantee2) Based on inflating a 13” tyre from flat to 2.4 BAR /22” tyre from flat to 2.6 bar3) Measurements of the tyre pressure and inflation of the tyres to the optimum tyre pressure must always be conducted on cold tyres