Here are excerpts from the official descriptions:
Xbox 360 Wireless Headset: Taking wireless communications to the next level with a sleek appearance that evokes the Xbox 360 console design, noise cancellation, and Bluetooth 3.0 technology.The device is compatible with Bluetooth devices such as mobile phones and PCs in addition to being able to connect to Xbox 360 through the console's standard radio frequencies. Easily switch from Xbox to Bluetooth mode to answer calls with the flip of a switch. Blue and green LED rings of light visually show which mode the device is in. The device comes with three sizes of ear gels and an ear loop to ensure a comfortable fit during extended gaming periods. The device allows up to eight hours of talk time and up to 300 hours of standby on a single charge. When it's time to charge up, the included micro USB charging cable connects quickly and easily to the Xbox 360 USB ports.
Xbox 360 Media Remote: With the new Xbox 360 Media Remote, enthusiasts can control their Xbox 360 Dashboard, DVD and CD playback, and media playback through Xbox Live. The Xbox 360 Media Remote also controls volume and power on many popular brands of TVs. Great for Xbox Live applications like Netflix, Hulu Plus, and ESPN, the remote is comfortably and intuitively designed so that the entire family can enjoy. The Xbox 360 Media Remote features a high-polish top case and rubberized keys with solid, key-press feedback. The Xbox 360 Media Remote also includes 2 AAA batteries.
They are dated, white, and not as shiny as the new tech Microsoft is about to release but they get the job done.
Many movies and songs have been controlled with this remote and so many games have been lost and won because of this headset.
Image is credited to myself
[CVG]