The Radio Shack Micro-31 Microcassette Recorder is a compact handheld voice recorder designed for recording meetings, interviews, lectures, and personal notes. Manufactured by RadioShack (part of the Tandy Corporation), this portable device uses microcassette tapes to store audio recordings and is known for its simple operation and lightweight design.
Key Features
Microcassette tape system for voice recording
Built-in microphone for capturing clear audio
Integrated speaker for instant playback
Simple push-button controls: record, play, stop, rewind, and fast-forward
Pause function for stopping and resuming recordings
Earphone jack for private listening
Portable handheld size that fits easily in a bag or briefcase
Recording format: 2-track, 1-channel mono
Power source: 2 AA batteries (3V)
Typical recording time: about 30 minutes per side depending on tape speed
Built-in dynamic speaker for playback
Compact portable design under 8 inches long
Typical Uses
Recording meetings and interviews
Dictation or voice notes
Student lectures and study recordings
Collectible vintage audio electronics
Overview
The Micro-31 became popular during the 1980s and 1990s when microcassette recorders were widely used for business dictation and note-taking before digital voice recorders replaced them. Its small size and easy controls made it a practical tool for professionals, students, and journalists.