Feature 1. Compact roof prism model balance small size and premium image quality. The 8X power magnification and 357ft/1500yds wide field of view is perfect for outdoor activities such as climbing, hiking, driving, watching wildlife and scenery. It uses 42mm Fully multi-layer coatings green film objective lens , fully multi-coated blue film eyepiece, and large smart phrase BAK4 prism which gurantee the key elements of an optical device, make your view brighter, clearer and deliver crisp images. 2. Solid construction -- Its durable framework and rubber armor make it usable to withstand the toughest weather conditions. 3. Use with or without glasses - Adjustable eye-cups twists up and down for comfortable viewing with or without eyeglasses. 4.1/4"-20 threads on the front. You can connect it to a tripod with a binocular adapter. 5. Compact and light weight, easy to carry outside. Item Dimension: 153*128*45mm Weight:523g. Capture beauty in the distant world and share them with your friends and families Beauty is everywhere Let's capture them, record them, and share it to all other people Many times we want to record the beauty in distant. But a long range camera lens is always heavy and expensive. For this purpose, we designed this smartphone adapter. It is compact, light weight and very easy to handle. Specification Range& 65306;5-1,200 meters (tree> Magnification& 65306;8x Accuracy& 65306;1 MY) Objective lens effectivediameter& 65306;42mm Wavelength& 65306;905nm Diopter adjustablle range& 65306;5 degree Display& 65306;PCLD Excit-pupil Diameter& 65306;3.3mm Body material& 65306;ABS plastic and rubber Eye Rellief& 65306;16mm size& 65306;153"128*45mm Fielld of view& 65306;7 Battery& 65306;CR2-3V Prism& 65306;K9 Water Reslstant& 65306;IPX 5 lignment focus& 65306;Center focusingadjustment Weight& 65306;525g Coating& 65306;Multi-layer coating