I have a Leica 1200 and a pair of Swarovski Laser Guides. Both are great RF's, the optical clarity of the Laser Guide are simply better than the Leica IMHO but the Leica's are much faster in ranging a target, probably due to a smaller aiming point are a better receiver. Since getting my 1200, Leica has come out with a smaller version I would reccomend checking them out. You wont be disappointedasalready stated above. The Swarovski takes a not so common 3V battery while the Leica's use a common 9V battery than you can get most anywhere in a pinch.