Ca7ch claims it has the "smallest live-streaming wearable camera" for smartphones yet with the Lightbox, a 4 x 4cm device able to live-stream photos and videos via wifi and Bluetooth.
It carries a low-light capable 8MP sensor and an f/2.4 lens with image stabilization inside a waterproof aluminum body, and shoots both stills and videos at up to 1080/30p. Image storage comes through 8GB of built-in memory, and can upload images straight to to the cloud.
A magnetic clip allows one to attach it to clothing and the like.
According to the company the battery has enough power to shoot either 1100 photos or 30 minutes of video, with control handled via either hardware button or iOS/Android app.