8X21 Focusing Telescope Multifunctional Directional Microphone Birdwatching Monocular Device Outdoor Bird Sound Picker This is a kind of quality birdwatching telescope, which is made of ABS engineering plastics, and the surface is black rubber anti-slip paint. Multifunctional device, 8x optical telescope combine with sound picker, practical and useful. Support transcribe recordings to computers and other audio equipment. You can have a try. Features: Made of ABS engineering plastics, and the surface is black rubber anti-slip paint. Multifunctional device, 8x optical telescope combine with sound picker, practical and useful. Rotate the focus-knob to adjust clarity of object, which can properly expand the viewing angle. With sound detection system, you can hear sound at distance of 100 meters. Adopts SOD6 recording chip, and the solid-state recording time is 12s. Equipped with rebroadcast function, and the rebroadcast accuracy is ≥ 0.6%. Support transcribe recordings to computers and other audio equipment. Comes with a pair of padded earphones, with waveform distortion less than 1%, which can efficiently reduce environmental noise. Specifications:  Name: Focusing Telescope Effective observation distance: 8m and more Material: optical glass lens+ABS Battery: 1 * 9V lithium battery (not included) Resolution: 11-11.5” Field of view: 7.5° Directional listening distance: 100 meters Volume adjustment: adjustable Audio frequency range: 50-20000Hz Waveform distortion: less than 6% Sensitivity: -68dB to -50dB Recording: solid-state recording time 12s.  Item size: 210 * 180mm / 8.26 * 7.08in Package size: 370 * 180 * 150mm / 14.57 * 7.09 * 5.91in Package weight: 700g / 1.54lb Packing List: 1 * Host 1 * Sound-collecting Plate 1 * Earphone 1 * Lens Cleaning Cloth 1 * English Manual