This manual was very clear and complete, the prices can't be beat, great to have older manuals available!
Text excerpt from page 2 (click to view)
TF-HF25-NK(J)
Specifications
TF-HF25-NK(J) Earphone section Type Nominal impedance Sensitivity Max.input capability Microphone section Type Directivity Sensitivity Cord length Mass Moving coil 32 ohms 111 dB/1 mW 10 mW Electrical condenser Non-directional -60 dB(0dB=1V/0.5Pa) 1.2 m (3.94 ft) with ø 2.5mm four-pole plug 5.5 g (0.19 oz) without cord 14.6 g (0.51 oz) with cord
Method of switching the nozzle direction
Switching the nozzle direction to fit the opposite ear
Turn the nozzle to the left Turn the nozzle to the right
Nozzle direction for the right ear
Nozzle direction for the left ear
*Do not hold the rubber pad directly when switching the nozzle direction as it can come off.
Switching the nozzle direction from the left ear to the light ear.
Turn the earphone nozzle 180¡(clockwise) with the hand, holding the microphone section with the left hand.
Note : Turn the earphone nozzle counterclockwise when switching its direction from the right ear to the left ear.
