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Comparison features
QuietComfort® 20i Acoustic Noise Cancelling® headphones

$299.95

QuietComfort® 20 Acoustic Noise Cancelling® headphones

$299.95

QuietComfort® 25 Acoustic Noise Cancelling® headphones

$299.95

Design
Fit In-ear In-ear Around-ear
Detachable audio cable    
Audio
TriPort® acoustic technology
Aware mode  
Plays music even when battery is depleted
Phone calling
Inline microphone Omnidirectional Omnidirectional Omnidirectional
Compatibility iPhone® Android™, BlackBerry® and Windows® phones iPhone®, Android™, BlackBerry® and Windows® phones
Storage/travel
Carrying case/bag Soft case Soft case Hard case
Fold-flat ear cups    
Inflight adapter Optional accessory Optional accessory
Power
Battery type Rechargeable Rechargeable AAA
Battery charger included  
Dimensions
Weight 1.55 oz 1.55 oz 6.9 oz (without cable)