Artic Butterfly SL-700. The Arctic Butterfly® SL700 is an entry level DSLR sensor cleaning tool for the more budget orientated consumers. It uses one AAA battery (not included), has a lower spinning speed compared to the Arctic Butterfly® 724 and does not offer the convenience of a detachable brush.The Arctic Butterfly® SL700 is compact so that it can easily fit into a photographer's pocket and comes with a bristle cap and sturdy carrying case.