HDTVhookup.com IR Repeater System - Compact and Easy to Install. Easily Hide your AV Products IR Repeater Extender System - Small and easy to hide Designed for todays - HDTV Products with a Dual Frequency IR Receiver Includes - 2 dual head IR emitters so you can control 4 devices right away Expandable - by adding in additional dual head IR emitters so you can control up to 8 devices Easy to install and easy to use. - We have sold thousands IR repeaters