Parabolic Microphone Bionic Ear for Range Listening Device, Bird Watching Instrument Nature Observing and Listening Digital Device for Distance Listening

Specification:
Item Type: BirdWatchingInstrument
Telescope Material: Optical Glass Lens
Product Size: Approx. 27.5 x 18.5 x 6.5cm / 10.8 x 7.3 x 2.6in
Power Supply: A 9V Battery or Carbon Battery. (shipped without batteries)
Telescope:
Effective Observation Distance: 5meters/5.5yd to Unlimitedness
Telescope Specifications: 8x21 Focusing Telescope
Resolution: 10 to 11in High Definition
Field of View: 7.5
Directional Listening Distance: Field Quiet Environment 200meters/218.7yd, Eliminating Environmental Noise Processing
Volume Adjustment: Continuously Regulable
Return Sound Frequency Range: 20 to 20000Hz
Waveform Distortion: Less Than 4%
Sensitivity: -60 to -50dB
Select 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 Sound
Weight: Approx. 694g/24.5oz
How to Use:
Batteryinstallation:
1.Usearectangular9Valkalinebatteryorcarbonbattery
2.Useascrewdriver,loosenthescrewandopenthebatterycover
3.insertanew9Vbattery,connectthebatterypositiveandnegative,donotconnectthereverse.Thedirectionofthebatteryinstallationisunique
4.Closethebatterycoverandtightenthescrew
Package List:
1 x Bird Watching Instrument Host
1 x Headphones
1 x Sound Collection Cover
1 x Mirror Cloth
1 x User Manual
Note:
Shipped Without Battery