On September 4, 2007, Microsoft released a small keyboard accessory called the Chatpad to coincide with the launch of Xbox Live Windows Live Messenger on Xbox 360. It was released as part of the Xbox 360 Messenger Kit, which also includes a wired headset. This is partly due to the fact that older Xbox 360 wired headsets cannot connect to the Chatpad due to the side pins. The Chatpad connects to the controller via two power pins and an UART interface located on the front of the controller (wireless or wired), as well as the 2.5 mm jack for headset compatibility.