Sennheiser CC 550 stereo headset with headband

Design: Invoices
Description: Design: on-ear, device type: wired headphones, acoustic design type: closed
Impedance: 300 ohm
Sensitivity: 103 dB
Length of cable: 1m
Device type: Wired headphones
Mount type: Headband
Maximum playback frequency: 3400 Hz
Minimum repeatable frequency: 300 Hz
Technology: Dynamic
Type of acoustic design: Closed