For LG Tone HBS-700 / Tone+ HBS-730 Bluetooth Headset 10W 2.1A Dual USB Ports Wall Home House AC Charger (White) High Performance 10W 2.1 Dual USB AC Home Wall Charger Adapter Simply use a compatible usb cable(not included) for your device to get charge up from this charger IC Chip recognizes a full battery & automatically switches to saver mode. Input: AC100-240 Volts; Output: 5.0V ~ 2100mah