For Garmin Forerunner 110 / Approach S1 / Approach S1W / Approach S2 / Approach S3 / Approach S4 / Approach S5 / Approach S6 / Approach S20 / Approach X40 White 10W Dual USB Wall Home AC Charger High Performance 10W Dual USB AC Home Wall Charger Adapter Dual USB sockets allow you to charge 2 devices at once. Simply use a compatible usb cable 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