Another portable famicom, seems like we see several new machines like this every year now. This paticular handheld looks pretty close to the Gametech Super Pocket Famicom in styling but without the downward handlebars. Apparently they're getting good at making these handheld clones, unlike the early attempts like the Game Axe these newer clones look and play better, with longer battery life and less compatibility issues.
Console runs off of three AA batteries and has AV out so it can be played on a TV. Not much else going on here. These handhelds can currently be found on various Japanese gaming sites (like this one) and go for around $40 or so.