4p4c headset training adapter training switch adapter rj9 rj10 | Shop The World
From USA
NewVoiceJoy
4P4C Headset Training Adapter Training Switch Adapter for RJ9 RJ10 Headsets with 2 Mute Buttons and 2 Volume Controls
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Products from the USA may come with an input voltage of 110V–120V, requiring a step-down transformer. Check the device wattage to select the correct power converter.
•TWO Volume Controls and Mute Switch for Microphone Separately
•Can plug either into handset port or headset port
•Great use for call center / telephone marketing trainings
From USA
