Denon DRR-M31 Cassette Deck for D-M31S Compact Stereo (Silver) Optional autoreverse cassette deck for the Denon D-M31S stereo and other D-M31 Series systems Horizontal tape loading mechanism (smooth, stable tape travel), extensive recording and editing functions Dolby B noise reduction, music search, auto tape selector CD-SRS function offers 1-touch recording from CD to tape when unit is connected to the D-M31S/UD-M31 CD player Measures 8.3 x 3.7 x 12.6 inches (W x H x D)