SVBONY SV135 Zoom Eyepiece, Zoom 7 to 21mm 1.25 Inch Telescope Eyepiece, 6 Element 4 Group Telescope Accessories for Astronomic Telescopes Visual 7-21mm electronics_new_releases_Aug2023 5mm Requency response: 50Hz-18kHz Input

5mm Requency response: 50Hz-18kHz Input impedance: 22Kohm Output impedance: 32 ohm Size: Approx

Turtle Beach & Similar Gaming Headsets : Gaming Headset to PC Adapter - 3

Good anti-slip performance: with strong adsorption force

internal L*W*H = 4

No frustrating disassembly needed

SVBONY SV135 Zoom Eyepiece, Zoom 7 to 21mm 1.25 Inch Telescope Eyepiece, 6 Element 4 Group Telescope Accessories for Astronomic Telescopes Visual 7-21mm electronics_new_releases_Aug2023 5mm Requency response: 50Hz-18kHz InputSVBONY SV135 Zoom Eyepiece, Zoom 7 to 21mm 1. 25 Inch Telescope Eyepiece, 6 Element 4 Group Telescope Accessories for Astronomic Telescopes Visual Product Features SV135 7 mm to 21mm adjustable focal length; SV135 7 21mm zoom eyepiece equivalent to multiple eyepieces ; obtain higher magnification with short focal length; It could bring you a better observation experience in a comfortable situation with high contrast imaging 18mm 16. 3mm comfortable