Beyer appears to be aiming directly for Sennheiser's popular PX series with their new DTX 300p portable headphones. Much like the Sennheiser models, the DTX 300p is an on-the-ear design with a hinged, stainless steel headband, allowing the phones to be folded up and carried in the included soft case. Frequency response is rated at 25Hz - 18kHz, with portable player friendly 104dB/mW sensitivity and 32 Ohm impedance. The DTX 300p will be available in March, priced at $59.
Source: Headphones - Microphones - Headsets: beyerdynamic