Bose QuietComfort vs Bose QuietComfort 2

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QuietComfort compared with QuietComfort 2

	BoseQuietComfort	BoseQuietComfort 2
Overview
Released
Released	2000	2003
Sound
Type
Type	Over-ear	Over-ear
Noise cancelling
Noise cancelling	Yes	Yes
Back
Back	Closed	Closed
Bluetooth codecs
Bluetooth codecs	None (wired)	None (wired)
Noise cancelling detail
Noise cancelling detail	Noise cancellation works with the audio plug disconnected; the in-line box carries the power and Hi/Lo controls	Noise cancellation works with the audio cable detached; the power switch is on the right earcup
Battery
Listening time (maker's claim)
Listening time (maker's claim)	Up to 80 hours	Up to 35 hours
Battery life detail
Battery life detail	Bose states an average 80 hours from two AAA alkaline cells; the indicator flashes with at least eight hours remaining	The 2003 Bose guide states about 35 hours from one AAA alkaline cell; a later Bose guide for a revised QC2 states about 40 hours
Design
Headphone cable
Headphone cable	Yes	Yes
Controls
Controls	In-line On/Off and Hi/Lo switch; the two levels affect audio volume but not noise cancellation	Power switch on the right earcup; Hi/Lo level switch on the cable connector
Fit and ear tips
Fit and ear tips	Around-ear cushions with adjustable headband and replaceable ear cushions	Around-ear cushions and rotating earcups that fold flat into a case
Works with
Works with	Fixed cable with 3.5 mm audio plug; Bose also supplied dual 3.5 mm airline and 6.3 mm stereo adapters	Detachable wired audio cable with 3.5 mm source plug; dual 3.5 mm airline adapter and 6.3 mm stereo adapter described in the guide