Leviton 33A00-4 Omni Console with Built-In Speaker/Microphone Designed for use with an OmniPro II, Omni IIe, or Omni LTe security & automation system All control, security and programming functions can be accomplished using an Omni Console To work you must install a Two-Way Voice Module (sold separately) in your Omni family home control system Required for all Omni family control systems to meet UL requirements Leviton recommends professional installation on Security and Automation products. To find an installer in your area, please email dealer@leviton.com