USB Travel AC Wall Charger General Features: Compact design Input: 110 - 220 VAC ~ 50/60HZ (compatible for international travel - plug changer would be required) Max Output: 5 VDC, 400-500 mA LED indicator Unit Dimensions: 2.5 x 1.5 x 0.8-inches (H x W x D approximate) Regulatory Approvals: CCC