LYHXXX Parabolic Dish Directional Microphone, for Long Range Listening Device up to 300 FT, Monocular X8 Times Long Distance Hearing, Birds Listening Telescope, Camping Tools

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About LYHXXX Parabolic Dish Directional Microphone, For

Main features and technical indicators. 1?Telescope specification: 8×21 focusing telescope. 2?Effective observation distance: HD 8m~1200m. 3?Material: optical glass lens, surface plated with transparency-enhancing film and broadband film. 4?Definition rate: 166/1000m. 5?Field of view: 7.5Degree 6?Accurate directional listening distance: 200m in a quiet field environment. 7?Volume adjustment: adjustable. 8?Return frequency range: 50~20000Hz. 9, Waveform distortion: less than 5%. 10?Sensitivity: -68~-50dB. 11?Recording: US imported recording chip, solid-state recording time 18 seconds. 12, Replay: solid-state recording replay accuracy = 0.5%. 13, Transcription: Through the transcription cable, the recording can be transcribed to computer, recorder or other audio equipment. 14?Energy consumption: low energy consumption design of switching circuit, no power consumption when not in use. Over 6 hours of use. 15?Power supply: one 9V square battery. (No battery, you need to provide your own) 16?Appearance of the main unit: ABS engineering plastic is used for the internal and external structural parts and the surface is painted with rubber anti-slip paint. 17?Audio: waveform distortion less than 0.8%. 18?High fidelity earplugs for bird listening device, clear sound quality and better noise isolation. 19?Manual: English. With detailed installation and use instructions. 20?Includes: main unit, sound collection plate, mirror wipe, environmental protection desiccant, English manual, certificate of conformity.