Sangoma H20 Mono (monaural) wireless DECT

H20 Mono (monaural) wireless DECT and USB headset, up to 325′ range, non-flexible boom microphone, noise canceling, headband, for Sangoma S-series telephones or Digium D-series telephones ONLY. Optional EHS adapter required when connecting directly to desktop telephone, SKU #PHON-ACCS-EHS30-SNG for Sangoma S-series telephones or SKU #1TELHC01LF for Digium D-series telephones. Optional EHS adapter not required if the H20 is connected to a PC via USB (PC softphone software have EHS functionality built-in). No returns on opened items.