This invention relates to an alloy comprising polyurethane and polyolefin. In particular, the present invention provides devices, systems and methods for spectroscopic imaging and sensation of objects. The bypass passage is arranged substantially perpendicularly to a primary air flow direction in the intake pipe. The unit also includes a \u201cpolling\u201d function that requests location data from other units, an auxiliary coding system that codes or encrypts all transmitted data, and an emergency message feature that facilities the transmission and receipt of emergency messages. The control distinguishes the vocal signals from the non-vocal signals by a ratio of at least 2:1. The larger core creates maximum strength and allows longer cutting lengths.