SDI Technologies is the name of a consumer electronics manufacturer whose products are marketed under several national brands, including Timex, Sylvania, eKids, New Balance, KIDdesigns, and iHome. They used to market under Soundesign, a now defunct brand. SDI Technologies employed 110 in 2007, and has a distribution network that covers over 70 countries. Including Asia, SDI employs over 400 people.
Soundesign, a defunct division of SDI Technologies originally known as RealTone, marketed inexpensive home and portable electronics. The Soundesign brand faded as SDI began selling its products under the Zenith brand in 1993. SDI's current offerings include small electronics of the iHome and Timex brands.
Created in 2005, the iHome division produces docking stations, headphones, smart home devices, and other accessories. iHome speakers are able to stream music over Apple AirPlay, Bluetooth, as well as via a wired connection. In addition to playing music wirelessly, some systems can act as a charging station for many devices when connected. Their compatibility ranges from smartphones, MP3 players, iPods, tablets, and more. Some iHome accessories act as a docking station so that users with tablets can use a physical keyboard rather than the one provided on-screen with many devices. iHome also produces several smart home accessories such as smart outlets and motion detectors, which are compatible with Apple HomeKit, Samsung SmartThings, Wink, as well as others. 
- NY Times article 25 November 1992
- SDI Company Information Page
- iHome Smart Home Accessories,