Xantech 789-44PS One Zone Four Source Connecting Block with Power Supply This Xantech 789-44 connecting block is a versatile device that allows you to connect multiple audio inputs and outputs to a single source. It features quick-connect stereo mini jacks and infrared wireless output connections, making it easy to connect to your TV, audio receiver, or other devices. This black connecting block is line-powered and has a weight of only.3 lbs, making it easy to use and transport. With four inputs and outputs, this Xantech connecting block is compatible with universal models and has a range of features, including auto-scan and jack connector. It is perfect for those who want to simplify their audio system and connect multiple devices to a single source. Whether you're at home or in a home entertainment center, this connecting block is a must-have accessory for your audio system. New in original unopened packaging.