Chiciris Parabolic Microphone Monoculars, 8X Portable Bird Listening Device Bionic Ear Sound Amplifier For Distance Observing He

Specificationitem Type: Bird Watching Instrumenttelescope Material: Optical Glass Lensproduct Size: Approx. 27.5 X 18.5 X 6.5Cm / 10.8 X 7.3 X 2.6Inpower Supply: A 9V Alkaline Battery Or Carbon Battery. (Shipped Without Batteries)Telescope:Effective Observation Distance: 5Meters/5.5Yd To Unlimitednesstelescope Specifications: 8X21 Focusing Telescoperesolution: 10 To 11In High Definitionfield Of View: 7.5Directional Listening Distance: Field Quiet Environment 200Meters/218.7Yd, Eliminating Environmental Noise Processingvolume Adjustment: Continuously Regulablereturn Sound Frequency Range: 20 To 20000Hzwaveform Distortion: Less Than 4%Sensitivity: -60 To -50Dbselect The Target Range, Then Pull The Trigger To Hear The Amplified Sound. No Need To Install Sim Card And Sd Card, You Can Record 12 Seconds Of Soundweight: Approx. 694G/24.5Ozbattery Installation:1. Use A Rectangular 9V Alkaline Battery Or Carbon Battery2. Use A Screwdriver, Loosen The Screw And Open The Battery Cover3. Insert A New 9V Battery, Connect The Battery Positive And Negative, Do Not Connect The Reverse. The Direction Of The Battery Installation Is Unique4. Close The Battery Cover And Tighten The Screwpackage List1 X Bird Watching Instrument Host1 X Headphones1 X Sound Collection Cover1 X Mirror Cloth1 X Manualnoteshipped Without Battery