Product Dimensions: 3.8 x 3.2 x 0.9 inches ;Item model number: AK-A1214011High Capacity: Charges the iPhone 6 four times, the iPhone 6 Plus or Galaxy S6 two and a half times or the iPad Air once. Safely recharges with a 2 amp output charger (most phone chargers have 1 amp output).Fast Charging Technology: PowerIQ and VoltageBoost combine to deliver the fastest possible charge up to 2.4 amps per port or 3 amps overall.Certified Safe: Anker's Multi Protect safety system ensures complete protection for you and your devices.