Sennheiser Telephone Headset Passive Switchbox

Check for compatibility with my phones and accessories needed to connect. The UI box works as a connector between your handset and headset. At the touch of a button, a passive box will enable you to easily switch back and forth between the handset and headset or even integrate a PC into the system if you wish. Features:

• The ultra-compact UI 710 allows you the comfort of quickly switching between using the headset or the telephone handset.

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