Essential Gomadic AC /DC Charge Accessory Bundle Kit for the Jaybird Freedom Sprint includes Gomadic Home and Car Chargers at a Money Saving Price. Based on TipExchange Technology 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 Jaybird Freedom Sprint. Gomadic TipExchange Technology protects your investment by allowing you to change/upgrade either charger by simply swapping the physical charging tip. (Charging tips for Jaybird Freedom Sprint included with additional tips sold separately). 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!) Both Gomadic car and wall chargers employ state of the art, advanced internal circuitry to protect Jaybird Freedom Sprint 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.