- Versatile Accessory: The compact 21x30 spotting scope is designed for easy one-handed use. It includes a tripod and smartphone adapter (5.7 cm to 8 cm), making it simple to connect your smartphone for long-duration viewing. Each purchase comes with a cleaning cloth, storage bag, carrying rope, and a color box for convenience. - High-Power Magnification: This spotting telescope offers 30x magnification paired with a 21mm objective lens diameter, ensuring clear and bright images. Its wide field of view makes it ideal for outdoor activities such as bird watching, hunting, hiking, camping, and sightseeing. - Durable Design: Built for adventure, this high-definition monocular is waterproof, anti-fog, dust-proof, and shock-proof. The lens dust cap and O-ring sealed optical components protect against dust and moisture, providing reliable performance in various weather conditions (note: not suitable for heavy rain or prolonged submersion). - Superior Optical Quality: Featuring BAK4 prisms and multi-layer green film lenses, the 21x30 monocular delivers exceptional light transmittance of up to 99.5%. Its low-light capabilities enhance your viewing experience in dim conditions, though it is not effective in complete darkness. - Practical Applications: Perfect for bird watchers seeking detailed views from a distance, hunters needing a reliable spotting tool, or campers wanting to explore nature without carrying bulky equipment. This monocular is your go-to for any outdoor adventure.