LCTS Bionic Ear Parabolic Microphone Bird Monoculars, with 8X Prism Optical System Outdoor Remote Sound Collection,300 Feet Listening Device (Including Headphones)

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About LCTS Bionic Ear Parabolic Microphone Bird

1. Effective observation distance: HD 8m ~ 1200m. 2. Material: optical glass lens, anti-reflection coating and broadband coating on the surface. 3. Resolution: 166/1000 meters. 4. Huai determined listening distance: 200 meters in a quiet outdoor environment. 5. Audio frequency range: 50 ~ 20000Hz. 6. Waveform distortion: less than 5%. 7. Sensitivity: -68 ~ -50dB. 8. Recording: high-quality recording chip, solid state recording time 18 seconds. 9. Replay: Replay accuracy of solid-state recording ≥0.5%. 10. Power supply: a commercially available 9V square battery.(did not include) 11. Appearance of the host: The internal and external structural parts are made of ABS engineering plastic, and the surface is environmentally friendly with rubber anti-skid paint. 12. Audio: waveform distortion is less than 0.8%. 13. High-fidelity earplugs for bird listening instruments, with clear sound quality and better noise isolation. 14. Packing contents: host, sound collecting disk, lens cleaning cloth, environmental protection desiccant, English manual and certificate of conformity. 15 color:black 16. Sound Gun: About 17.5x28x5.5cm/ 6.89 inch x11.02 inch x2.17 inch(L*W*H) Sound Dish: About 25cm round 6cm(D)/ 0.79 inch round 2.36 inch(D)