"The LCD BacPac is a detachable LCD screen for your 1080p HD HERO camera. As a removable accessory, the LCD BacPac keeps your camera as small and light as possible, yet provides the convenience of an LCD screen when attached."

GoPro LCD BacPac?: Removable LCD Monitor for HD HERO Cameras (http://gopro.com/hd-hero-accessories/lcd-bacpac/)