Bose QuietComfort 15 vs Bose QuietComfort 2

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QuietComfort 15 compared with QuietComfort 2

	BoseQuietComfort 15	BoseQuietComfort 2
Overview
Released
Released	2009	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 can be used without the audio cable; the power switch is on the right earcup	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 35 hours	Up to 35 hours
Battery life detail
Battery life detail	Around 35 hours from one replaceable AAA alkaline cell; the indicator flashes with approximately five 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	Power switch on the right earcup; Hi/Lo level switch on the audio cable for high-output sources such as aircraft systems	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; the earcups rotate inward for storage in the carrying case	Around-ear cushions and rotating earcups that fold flat into a case
Works with
Works with	Detachable wired audio cable with 3.5 mm source plug; supplied adapter for dual 3.5 mm aircraft sockets	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
In the box
In the box	Headphones, carrying case, audio cable, AAA battery and airline adapter; later packages also included a cable with remote and microphone	–