The present invention provides a headphone with cord winder devices that are capable of winding up a bridging cord between one headphone assembly and the other headphone assembly. The number of sub-carrier signals available from each of the OFDM symbols being variable between OFDM symbols and the input data symbols include first sets of data symbols and second sets of input data symbols. To the remaining {fraction } to {fraction } of the scrim’s thickness and to the bottom surface of the scrim is applied pressure sensitive adhesive. In addition, it is suggested that the hydraulic motor has an adjustable displacement volume, and that the controller increases the hydraulic motor displacement volume is a foreign body appears. The exponent unit can obtain an exponent value of an operand having a bit width that is greater than a processing bit width of a leading one detector. It is because the bluetooth apparatus at the transmitting terminal transmits the stream media files through the OPP and the bluetooth apparatus at the receiving terminal receives and plays them, and then the waiting time for playing is reduced.