" It features both internal and external improvements. Externally Sound ID went with a carbon fiber work to set it apart from earlier editions that were various styles of black. The biggest addition to this Bluetooth headset is the voice menu technology, which allows a user to interact with their phone in new and unique ways. Services such as Bing411, Google Voice and others can be activated using the voice menu. The active connect feature allows users to connect to Bluetooth A2 DP media devices to the headset."