This wall charger charges the lithium ion batteries used in the Tango wireless headset. Get a quick charge with Automatic Constant Current Control, which prevents the battery from overcharging, short circuiting, or shock. This charger is designed with a foldable A/C plug so you can plug it in anywhere. The lit LED indicator shows the percent of charging that has been completed.
You can also charge another device via USB simultaneously. When you charge using the USB port and the battery charger at the same time, the USB charging will take higher priority (indicated with a blue light). Then when USB charging is completed, it will automatically convert to the battery charger and the indicator light will show red.