The RSM custom in ear monitor is a four-driver, three-way design with 2 woofers, 1 mid-range, and 1 tweeter. It has the power and presence to handle any stage, and the clarity and detail to enjoy while on the bus, plane or easy chair.
* Headphones iPod, MP3 player headphones * Sports stereo headphones. * Comfortable to wear all day long. * Our design fits like a soft spring. * One size fits all. * Compacts, stores anywhere. * Plugs into any standard 1/8" (3.5mm) headphone jack. * Our discreet design is almost unnoticeable to others. * Utility patent pending.