1. Objective Lens: 22mm 2. Eyepiece: 10mm 3. Prism: BAK4 prism 4. Durable materials: waterproof, moisture-proof, dustproof and anti-fog, and can be used normally in wet and rainy days. 5. Great for camping, hiking, traveling, bird watching, sports events, concerts, and other outdoor activities 6. Foldable and compact, very convenient to store and carry
