Altigen iFusion SmartStation AP300, Black (iPhone 3G, 3GS, 4, and 4S) The Dock Connector for this device is an Apple 30-pin Connector and supports the iPhone 3G, 3GS, 4, and 4s. Powerful full duplex speakerphone for hands free conversations One-touch Feature buttons for Speakerphone, Bluetooth Pairing, Volume Up/Down, Mute Comfortable, ergonomically designed telephone handset Embedded iPhone dock provides power and battery charging Voice Devices: Handset Port, Hand-Free speaker phone, PUSB port for data synchronization with a Mac or PC