1. Panasonic ideas for life RP HX50 Monitor Headphones 18mm Slim and fold flat design Slim carrying case included Durable construction with stainless steel head band Frequency response 12Hz 24Hz Superb high quality monitor headphones Headphone Features Drive Unit diam in mm 30 0 Impedance Ohm 1KHz 30 0 Sensitivity dB mW 108 0 Max Input mW 100 0 Frequency Response Hz KHz 12 Hz 24 kHz Cord Length m 1 2m Weight g without cord 57 0 MiniPlug diam 3 5mm yes Plug Adaptor diam 6 3mm yes Plug Type Gold Magnet Type Neodymium Colour Silver IR Transmitter RF Transmitter DSSS Transmitter Panasonic ideas for life Receiver