Gomadic Car and Wall Charger Essential Kit suitable for the Palm palm Zire 31 - Includes both AC Wall and DC Car Charging Options with TipExchange This Gomadic Car charger has a wide input voltage range of 12-24vDC to support all vehicle charging ports. Works in cars, trucks, planes, boat, RVs and more (both domestic and international). Available output current is an impressive 10W/2A . (Twice most competing products!) Gomadic Wall Charger is built to support worldwide voltage input levels ranging from 100-240vAC /50-60 Hz. High output 10W /2A transformer provides output voltage and resistor configuration specific to the Palm palm Zire 31. Gomadic TipExchange Technology protects your investment by allowing you to change/upgrade either charger by simply swapping the physical charging tip. (Charging tips for Palm palm Zire 31 included with additional tips sold separately). Both Gomadic car and wall chargers employ state of the art, advanced internal circuitry to protect Palm palm Zire 31 from power surges, overcharging and short-circuiting. A select best-selling product bundle from Gomadic Corp, one of the leaders in consumer electronic charging accessories since 2001.