M-TK 2400mAh Dual Ports USB Car Charger For Garmin Forerunner 110 / Approach S1 / Approach S1W / Approach S2 / Approach S3 / Approach X40 Output of 5.0V - 2400mah for immediate rapid charges. Charge most devices that use a USB charging cable, (iPod, iPhone, GPS, cell phone, MP3, PDA, Blackberry etc..)) Fit into any 12v-24V car cigarette power port. USB Charging Cable sold separately.