From Homestar Runner Wiki
The Twicestyle is a simple-looking boombox owned by Strong Bad. It has two tape decks, hence the name. It resembles a mid-'90s dual-deck tape player. It has four buttons (stop, record, play, and rewind) per deck and the tapes aren't visible through the windows on the decks. It has its name emblazoned on the right deck. The player wouldn't be very convenient, as it is missing the fast-forward button.