A:
The SoundDock III is not compatible with the iPhone 4. It uses the newer “Lightning” connector and is made specifically to work with iPhone 5 and similar current Apple products.
Our SoundDock II and Sound Dock Portable are both compatible with iPhone 4, but would need a “30-pin to lightning” adapter cable from Apple in order to work with the iPhone 5. Use of this adapter may be the only way to dock both phones on the same product.
Alternately you might consider our Sound Dock 10 Bluetooth Digital Music System or our SoundLink Wireless Mobile product. Either would connect wirelessly via Bluetooth instead of through a physical docking connector. This makes them fully compatible for use with both iPhone 4 and iPhone 5.