OSRAM TYREinflate 4000 is a wireless rechargeable tire pump with Li-Ion battery. The ideal companion for hiking and outdoor activities. The OTIR 4000 digital tire pump can inflate a tire in just 3.5 minutes (13" 0-2.4bar). With automatic stop function. Backlit LED display and LED light. Memory function for storing tire pressures for up to 4 vehicles.