The Olympus VN-7100 is a digital recorder that can be used by individuals who are blind or have low vision. This portable recorder has three recording modes: HQ for high quality, and SP and LP for extended recording. The VN-7100 features sub band/CELP recording format and 39 hours of recording time for HQ mode, 100 hours for SP mode, and 573 hours for LP mode using 1 gigabyte (GB) of built-in flash memory. The overall frequency responses are between 150 Hertz (Hz) to 7.9 kiloHertz (kHz) for HQ mode, 300 Hz to 4.7 kHz for SP mode, and between 300 Hz to 2.9 kHz for LP mode. Other features include a liquid crystal display (LCD) screen, four folders (200 messages per folder), a built-in 28-millimeter (mm) round dynamic speaker, a 3.5-mm microphone jack, and a 3.5-mm headphone jack. The "Voice Activation" function records only when the microphone senses sound. "Slow Playback" plays audio 25 percent slower and "Fast Playback" plays 50 percent faster than real time. "Index Marks" allow the user to electronically mark when each file begins. OPTIONS: Carry case, headphones, microphones, wrist straps, and neck straps. POWER: Uses two AAA alkaline (LR03 or R03) (included) batteries or two AAA Ni-MH rechargeable batteries (not included). Battery life in HQ mode is 68 hours for recording, 20 hours for playback using speaker, and 49 hours for playback using headphone; for SP mode is 86 hours for recording, 21 hours for playback using speaker, and 53 hours for playback using headphone; for LP mode is 57 hours for recording, 21 hours for playback using speaker, and 57 hours for playback using headphone. DIMENSIONS (HxWxD): 4.1 x 1.4 x 0.8 inches. WEIGHT: 2.3 ounces including batteries.