Billed as “the world’s first camera-top wireless HD video encoder,” the Cube from Irvine, CA-based Teradek streams up to 1080p over Wi-Fi, Verizon 4G, and wired Ethernet.

The battery-powered H264 encoder sends video directly from a camera to a decoding device such as a laptop or iPad. The Cube is available in HD-SDI and HDMI models running in the $1500-2000 range, and is designed for those in the business of live streaming — or those looking for production solutions such as on-set video monitoring or eliminating the need for camera tethering.

To operate, the Cube slides into the camera’s hot shoe and goes live with a single button via Livestream.com. Gizmodo reports the process is “unhampered by firewalls, blocked ports, and other network roadblocks.”

Early adopters earn a month of Livestream.com premium membership (about a $350 value) with a Cube purchase.