Long Range Listening Device: Parabolic Dish Directional Microphone & Birds Listening Telescope

Main features and technical specifications.

The telescope specification is 8×21 with a focusing capability. It offers an effective observation distance of HD 8m to 1200m. The materials used include optical glass lens, surface plated with transparency-enhancing film and broadband film. The definition rate is 166/1000m with a field of view of 7.5 degrees. It also boasts an accurate directional listening distance of 200m in a quiet field environment.

Volume adjustment is adjustable, and the return frequency range is 50 to 20000Hz with waveform distortion of less than 5%. The sensitivity range is -68 to -50dB. For recording, it features a US-imported recording chip with a solid-state recording time of 18 seconds. The replay accuracy is at 0.5% for solid-state recordings.

Transcription capabilities are enabled through a transcription cable, allowing recordings to be transcribed to a computer, recorder, or other audio equipment. Energy consumption is low, with a design that features a switching circuit for minimal power consumption when not in use. The device can be used for over 6 hours and is powered by one 9V square battery (battery not included).

The main unit is designed with ABS engineering plastic for both internal and external structural parts, with a surface painted with rubber anti-slip paint. Audio quality is ensured with waveform distortion of less than 0.8%. Additionally, high-fidelity earplugs are included for bird listening, providing clear sound quality and better noise isolation.

The manual provided is in English with detailed installation and use instructions. The package includes the main unit, sound collection plate, mirror wipe, environmental protection desiccant, English manual, and certificate of conformity.

product information: