10-300x40 Zoom Powerful Monocular Telescope Mobile Phone Lens Professional Outdoor Camping Bird Watching Portable Retractable(Mobile phone clip only)

BAK4 Prism with high refractive index is uesed,the prism plays a very impotant role in the optical structure,the light transmittance is higher than that of BK7,and the field of vision is more transparent Wideband green film is used to effectively improve the clarity and color! Large diameter,high brightness Have a 15mm eyepiece,the larger the eyepiece is the more comfortable it is to watch,the longer the pupil is ,and the user wearing glasses can easily watch Lifting Eye Mask There maybe differences in vision between the left and right eyes,when using,you can adjust the definition frist,and you can easily watch with glasses The focusing wheel is made of leather,which is comfortable to handle ,beautiful and high-grade,easy to rotate abd accurate focusing