K&F Concept 8-32x50 Zoom Monocular with Phone Holder – BAK4 Prism, FMC Lens, Tripod Mount, Waterproof – Ideal for Birdwatching, Hiking, Hunting, Camping, Travel. The large 50mm objective lens ensures a brighter, wider field of view – perfect for nature spotting, birdwatching, hiking or sporting events.
eBay