The most popular type of monocular is like half a pair of binoculars. It fits in a pocket, making it easy to carry around, and is simple to use. If you want to see something that’s far away but don’t want to carry binoculars around, a monocular is a great device.

VINCIGO 12x50 monocular telescope for adults equipped with BAK-4 prism and FMC(fully multi-coated) green coated lens. The BAK-4 prism(higher light transmittance than BAK-7 prism) allows more light transmission and gains more brightness.

If you want adapter for Iphone X, you need use phone adapter target the below camera.

High powered Dual Focus Monocular
The compact monocular is designed with a adjustable rotating eyepiece that not only fit for people who do not wear glasses,but also fit for eye-glass wearers.
 

Monocular Telescope Specifications:
Magnification: 12x (fixed at 12x, not adjustable)
Objective lens: 50mm
Prism Type: BAK-4
Objective lens coating: FMC
Prism system: BAK4 Prism
Field of view: 360ft/1000yds
Weight of monocular: 0.61 pounds