Gomadic Intelligent Compact AC Home Wall Charger suitable for the Golf Buddy Voice GPS Rangefinder - High output power with a convenient, foldable plug design - Uses TipExchange Technology Power Sleep"" feature reduces vampire power draw 99%. Charger will consume less than 0.1W of power when in ""dormant state"" (e.g. not connected to the Golf Buddy Voice GPS Rangefinder). Gomadic Powerful High Wattage wall charger for home or travel use. Customized circuit design is based on the latest in power regulation and is tailored to the precise output voltage and resistor ID requirements of the Golf Buddy Voice GPS Rangefinder (accurate to 0.1v!) Advanced state-of-the-art internal circuitry protects the Golf Buddy Voice GPS Rangefinder from power surges, overcharging, and short-circuiting, to significantly extend the internal battery lifecycle. TipExchange Technology protects your investment, by providing a means to change/upgrade your charger by simply swapping the physical charging tip. (Charging tip for Golf Buddy Voice GPS Rangefinder) included with additional tips sold separately) Specification: Input Voltage (100 - 240vAC), Cable length (50 inches), Transformer Dimensions (2.0 X 1.75 inches), Foldable Adapter (Yes), Circuit Design (Golf Buddy Voice GPS Rangefinder Specific)