Superb sound quality Ultra noise cancelling microphone 330° rotatable microphone boom

LCD Backlit 2 Color, 20 Buttons 2 Pages of Contacts

Large graphic LCD screen with backlight Two pages of 19 programmable buttons 20 physical buttons, dual colour LED

20 physical keys each with a dual-color LED 20 additional keys through page switch Daisy-chain 6 modules up to 120 keys