Noise Cancelling Headphones
SE-NC21M
SOUND: Reduces ambient noise by about 90%, producing clearer and more audible sound. DESIGN: The energy-saving design allows up to 120 hours of continuous listening enjoyment. (When using alkaline batteries.) The noise-cancelling function can be turned off if not necessary, allowing you to use them as regular headphones.
SE-NC31C
SOUND: Reduces ambient noise by about 90%, producing clearer and more audible sound. DESIGN: A handy 'monitor' button temporarily turns off the noise-cancelling effect so you can hear your surroundings when needed. The energy-saving design allows up to 120 hours of continuous listening enjoyment. (When using alkaline batteries.) The noise-cancelling function can be turned off if not necessary, allowing you to use them as regular headphones.