Sennheiser CEHS-MB EHS Cable (506033)

Sennheiser CEHS-MB 01 RJ-45/RJ-9/Mini-phone Phone Cable - 2.3 ft Mini-phone/RJ-45/RJ-9 Phone Cable for Phone, Headset, Cellular Phone - First End: 1 x Mini-phone Male Audio - Second End: 1 x RJ-9 Male Phone, Second End: 1 x RJ-45 Male Network