This compact, lightweight voice recorder offers up to 105 minutes of recording and headphones-free listening though the unit"s built-in speaker. The RR-QR120 uses high-quality ADPCM (Adaptive Differential PCM) recording and offers three recording modes: high quality, standard play, long play. Along with a jack for an external microphone (not included), there"s a built-in high-sensitivity condenser microphone. The display shows the recording condition and the remaining memory. With four folders and 99 files per folder, you"ll have all necessary organizational tools at your fingertips. Other handy features include timer recording and playback, file intro scan, and slow and fast playback. The unit measures 4.25 by 2 by 0.6 inches and weighs 1.6 ounces (without battery).