1. BAK4 high-transparency prism with high refractive index has a light transmittance of over 95%, and the image is transparent and bright without chromatic aberration and without vignetting 2. Share with others for more than just a moment. It can be connected to a mobile phone to take pictures and record videos, so that the beauty can be shared together 3. of view of the objective lens is unobstructed. The objective lens has a wide field of view, which is comfortable to watch and has an unobstructed view of the beautiful scenery. 4. Clear imaging multi-layer purple-red coating has a high light transmission rate, sharp and bright imaging, and high-definition does not hurt the eyes 5. Life is waterproof, easy to use and easy to deal with various outdoor environments, ensuring the normal use of the telescope Product Description: Model: 12X50 Structural: Monoculars Function: type low-light telescope Instrument: magnification 8 Exit pupil distance: 2.6 (mm) Exit pupil diameter: 11 (mm) Field of view: 131M/1000M Material: plastic colour: black Package Contents: 1 x Telescope 1 x Hanging bag 1 x Hanging rope 1 x Mirror wiping cloth 1 x English instructions Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.