The Grundig TK 340 is a compact cassette tape recorder that was produced in the late 1970s and early 1980s. This model is notable for its portability and ease of use, making it a popular choice among users looking for a reliable tape recording solution. The TK 340 features a built-in microphone, allowing users to make recordings with minimal setup. It offers playback and recording capabilities with variable speed control, which enables users to adjust tape speed for different audio effects. The device typically has controls for play, stop, pause, rewind, and fast forward. It is powered by batteries or AC power, giving users the flexibility to use it in various settings. The chassis design is straightforward, often featuring a plastic case that makes it lightweight and easy to handle. Audio quality is generally acceptable for its time, suitable for voice recordings, music, and other sound captures. The Grundig TK 340 is designed with durability in mind, reflecting the build quality associated with the brand during its period of production.