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 Golf Buddy Voice GPS Rangefinder. * 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 TipExchange Technology protects your investment by allowing you to change/upgrade either charger by simply swapping the physical charging tip. (Charging tips for Golf Buddy Voice GPS Rangefinder included with additional tips sold separately). * Backed by our Gomadic Lifetime Warranty. Quality products protected by a quality guarantee. * Kit includes two essential Golf Buddy Voice GPS Rangefinder accessories in one convenient package.