Bose QuietComfort 15 vs Bose QuietComfort 3

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

QuietComfort 15 compared with QuietComfort 3
BoseQuietComfort 15BoseQuietComfort 3
Overview
Released20092006
Sound
TypeOver-earOn-ear
Noise cancellingYesYes
BackClosedClosed
Bluetooth codecsNone (wired)None (wired)
Noise cancelling detailNoise cancellation can be used without the audio cable; the power switch is on the right earcupNoise cancellation can run with the audio cable detached; the power switch is on the right earcup
Battery
Listening time (maker's claim)Up to 35 hoursUp to 20 hours
Battery life detailAround 35 hours from one replaceable AAA alkaline cell; the indicator flashes with approximately five hours remainingThe 2006 Bose battery instructions state approximately 20 hours per charge; a later Bose owner guide states approximately 25 hours. The battery is removed from the right earcup and charged in a separate mains charger
Design
Headphone cableYesYes
ControlsPower switch on the right earcup; Hi/Lo level switch on the audio cable for high-output sources such as aircraft systemsPower switch and indicator on the right earcup; audio volume is controlled at the source
Fit and ear tipsAround-ear cushions; the earcups rotate inward for storage in the carrying caseOn-ear cushions and rotating earcups that fold flat into the carrying case
Works withDetachable wired audio cable with 3.5 mm source plug; supplied adapter for dual 3.5 mm aircraft socketsDetachable audio cable with 3.5 mm source plug; supplied dual-plug airline adapter
In the boxHeadphones, carrying case, audio cable, AAA battery and airline adapter; later packages also included a cable with remote and microphoneHeadphones, removable battery, battery charger, audio cable, airline adapter and carrying case; later packages included an Apple-compatible remote and microphone cable

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