Headset for Aastra 5360, 5361, 5370, 5380, 5730, 53i, 55i & 57i IP Phone
Earphone Speaker Specification. The fixed microphone boom adjusts freely to any position, and is longer than non-pro headsets. Microphone Specification. Transducer: Electorate condenser microphone. Transducer: Moving Coil Dynamic Speaker.