... hours 2.Standby: ~400 hours Detailed Product Description Bluetooth Keyboard for iPAD iPhone 4G PS3 1.Constant Use: ~50 hours 2. ... ~400 hours 3.Power: Charges by USBBluetooth Keyboard for iPAD iPhone 4G PS3 Main Feature:for iPad, Mobile Phone, PS3 for iPhone/iPhone ... those who need more options, this Mini Bluetooth Keyboard even works with an iPad, PS3, and Bluetooth-enabled laptop/personal computer! ...