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Recommended accessories
Replaceable gel ear cushions (Cat. No. 092807)
BP-04 battery pack (Cat. No. 500357) (except for HMEC 352, HMEC 355 and HMEC 356)
Battery pack with XLR-3 socket for powering the NoiseGard™ electronics of the
HMEC 350, HMEC 355-C, HMEC 372, HMEC 450 and HMDC 372 headsets. Four 1.5 V AA
size alkaline manganese batteries (IEC LR 6) ensure approx. 15 hours of reliable
operation (batteries are not included in the delivery). Length of connecting cable: 0.9 m.
Adapter cables (except for HMEC 352, HMEC 355 and HMEC 356)
Sennheiser offers special adapter cables for connecting the NoiseGard™ electronics of
the HMEC 350, HMEC 355-C, HMEC 372, HMEC 450 and HMDC 372 headsets to the on-
board power supply via the cigarette lighter socket:
• ACX-1 adapter cable for powering one headset via the cigarette lighter socket
• ACX-2 adapter cable for powering two headsets via the cigarette lighter socket
The adapter cables are also available with a right-angled jack plug featuring a 7.5 A fuse
and a green LED operation indicator:
• ACX-11 adapter cable for powering one headset via the cigarette lighter socket
• ACX-22 adapter cable for powering two headsets via the cigarette lighter socket
ACX-1
ACX-11 ACX-22
ACX-2
