2 x 1900mAh Replacement Battery And External Wall Charger For Sprint Samsung Galaxy S II Epic Touch 4G D710,And HoneyK&trade; 3 Colors Silicone Wrist Band Battery type: Li-ion; Voltage: 3.7V; Capacity: 1900mAh Grade A cells to ensure longer battery life and charge cycles More than 500 recharge cycles over the life of the battery Built-in circuit protection, Wall Charger Includes HoneyK&trade; 3 Colors Silicone Wrist Band