Buy EPOS | SENNHEISER Training cable:2 x ED to ED open microphone and open speaker on both the trainee and trainer side, with the option to mute button for trainer (ATC 02) - MYITHUB
Sennheiser CC 510 Einseitiges Kopfbügel-Headset: Amazon.de: Computer & Zubehör
Sennheiser TPC 03 Side Support, CC500 Series (504157)
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