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. You can choose an active box with additional features that will regulate different volume levels and improve speech intelligibility - automatically. Manufacturer: Sennheiser Electronic Corporation Manufacturer Part Number: UI710 Manufacturer Website Address: http://www.sennheiser.com Brand Name: Sennheiser Product Model: UI 710 Product Name: UI 710 Handset/Headset Selector Product Type: Handset/Headset Selector Interfaces/Ports: Phoneline (RJ-11): Yes Interfaces/Ports: USB: No

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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. The ultra-compact UI 710 allows you the comfort of quickly switching between using the headset or the telephone handset. Sennheiser UI 710 Handset/Headset Selector is one of many Phone Couplers, Adapters & Routers available through Office Depot. Made by Sennheiser.

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