1、This monocular offers an 10X magnification and a 40mm objective diameter 2、The fully coated optics, meanwhile, guarantee superior light transmission and brightness 3、Single hand operation, compact and lightweight, with wrist strap which is easy to carry 4、Night vision. It will help you see things in low light, it doesn't help you see things in the dark 5、Good for sporting events, concerts, bird watching, camping, fishing, golf, scope and travelling Description: Our HD optical monocular telescope is suitable for enjoy beautiful nature, view birds, watch sports etc. Day night vision. It will help you see things in low light, it doesn't help you see things in the dark. Can't be used at night. Powerful, ultra-compact and ultra-lightweight to carry. You are worth it. Features: 1. This monocular offers an 10X magnification and a 40mm objective diameter. 2. The fully coated optics, meanwhile, guarantee superior light transmission and brightness. 3. Single hand operation, compact and lightweight, with wrist strap which is easy to carry. 4. Night vision. It will help you see things in low light, it doesn't help you see things in the dark. 5. Good for sporting events, concerts, bird watching, camping, fishing, golf, scope and travelling. Specifications: Glass Material: BAK4 Color: Black Prism system: Roof Magnification: 10X Objective Lens Diameter: 40mm / 1.57" Telescope Size: approx. 16 x 5.5cm / 6.3" x 2.1" Storage Bag Size: approx. 16.5 x 6 x 5cm / 6.5" x 2.3" x 1.9" (L x W x H） Wrist Strap Length: approx. 22.5cm / 8.8" Package Weight: approx. 322g Focus Mode: Objective lens adjustment + Ocular accommodation Package Included: 1 x monocular telescope 1 x storage bag 1 x clean cloth 1 x wrist strap Note: 1. Can't be used at night. 2. Please allow 1-3cm error due to manual measurement. Thanks for your understanding. 3. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please in kind prevail.