Parabolic Dish Directional Microphone, Abs Long Distance Bird Watching Instrument Birds Listening Telescope For Scientific Natur

Spec:Item 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 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 To Hear The Amplified Sound. No Need To Install Sim Card And Sd Card, You Can Record 12 Seconds Of Soundweight: Approx. 694G/24.5Ozhow To Use:Battery Installation:1. Use A Rectangular 9V 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 Screwpackagelist:1 X Bird Watching Instrument Host1 X Headphones1 X Sound Collection Cover1 X Mirror Cloth1 X User Manualnote:Shipped Without Battery