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Comparison features
QuietComfort® 20i Acoustic Noise Cancelling® headphones

$299.95

QuietComfort® 20 Acoustic Noise Cancelling® headphones

$299.95

QuietComfort® 15 Acoustic Noise Cancelling® headphones

$269.95

QuietComfort® 3 Acoustic Noise Cancelling® headphones

$314.95

Design
Fit In-ear In-ear Around-ear On-ear
Detachable audio cable    
Custom color/finish options (additional charge)      
Audio
Acoustic Noise Cancelling® technology Better Better Better Good
TriPort® acoustic technology
Aware mode    
Plays music even when battery is depleted    
Phone calling
Inline microphone Omnidirectional Omnidirectional Omnidirectional Omnidirectional
Compatibility iPhone® Android™, BlackBerry® and Windows® phones iPhone® iPhone®
Storage/travel
Carrying case/bag Soft case Soft case Hard case Hard case
Fold-flat ear cups    
Inflight adapter Optional accessory Optional accessory
Power
Battery type Rechargeable Rechargeable AAA Rechargeable
Battery charger included  
Dimensions
Weight 1.55 oz 1.55 oz 6.8 oz 4.8 oz