Best thing I like very much - very high quality materials and workmanship, not only offers the possibility to use 2 accus in a grip but still has a trigger, push buttons, scroll wheel, front and rear - as well as an additive is still a reserve slot for normal batteries with this - I find very great if the accus times you can still help out with standard batteries and so photograph further prehistoric conk. Can these handle only know also offers the original case nor protection gg. scratches and scuffs. - Thumbs up. LG B. Gruber