It’s the converter box that does more—like providing time-shift recording and playing digital media, both via USB (not included). Connect an antenna to receive over-the-air ATSC (HD) digital signals, plus you can use analog pass-through for legacy broadcasts. Includes power adapter, remote (uses 2 AAA batteries, included) and an RCA cable. 5.25" w x 1.5" h x 3.5" d.