SENNHEISER | Sennheiser DECT/GSM cable:Easy Disconnect with 20 cm cable to 2.5mm - 3 pole jack plug. To use headset with DECT & GSM phones featuring a 2.5 m

Sennheiser Dect / GSM cable. EasyDisconnect with 20 cm cable to 2.5mm 3-pole jack. For using a SC 230, SC 260, SC 630, SC 660, CC Series or SH Series headset to a DECT and GSM phone with 2.5mm 3-pole jack.