Cybertech Dual Desktop Charger Cradle Dock for Samsung Galaxy SIII with Spare Battery Charging Slot for Samsung Galaxy S3 S III - Includes 2 pcs 2300mAh Spare Battery Dual Desktop Sync Charger for Galaxy S3 SIII - Verizon, Sprint, AT&T, T-Mobile & Others 3-In-1 Features: Synchronize, Charge Phone and Charge Extra Battery Includes 2300mAh Spare Battery x 2 !!!! Protection circuit will not overcharger, LED indicator light Includes one Sync Data Cable