A small package that packs a big punch, Native Union's Monocle speaker serves as a compact, portable boom box that plugs into your phone and brings rich, high-quality sound wherever you go. Daisy chain it with up to ten other Monocles for a surround-sound listening experience or switch gears and use it as a speakerphone or handset that's fully compatible with your phone. - 3.5mm jack - 40mm audio driver - Nylon-reinforced cord - Compatible with voice recognition feature on smartphones - ABS plastic/polyurethane