www.sennheiser.com/teamconnect-wireless
842B27G3
TC-W 667F42B5
TC-W 842B27G3
667F42B5
667F42B5
TC-W 667F42B5
TC-W 842B27G3
842B27G3
For further information
System 1
System 2
System identification:
Unique Set ID
for each system
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