Sig canyon 10×42 rangefinder binocular - SIG SAUER KILO Canyon 10x42mm Rangefinder

I do high volume varmint shooting for ranchers. Used the Sig Canyons last weekend. Glass and ranging great, however could not adjust eyepieces/ diapers to work with sunglasses without having tunnel vision and the battery died after 20-25 ranges. May have been battery it came with was bad as it was only 3/4 when installed. Will try another. Plus side, without glasses, great, and setup really quick and easy. I've been using other bino/rangefinder with sunglasses for years as most of our shooting is spring and summer. In a normal hunting situation would be great.