The cups on the Bose QuietComfort 3 headphones are 2.68 inches tall, 2.14 inches wide, and 1.3 inches thick, including the padding. Their backs are silver with black branding, and the back of the right cup has both a slot for a battery pack and a power switch. The back part of the left cup has a bit of a recess where the 2.5mm jack is located. The cups can both twist and tilt.
|Sensitivity (at 1 kHz)||1 dB|
|Impedance (at 1 kHz)||1.0 Ohm|
|Frequency Low||1 Hz|