How It Works The Audio Extender sender unit sits next to your audio source. Stereo cables supplied with the Audio Extender package connects your audio source to the sender. The receiver unit connects to your speakers or audio output device. One CAT-5 cable connects the sender and the receiver to each other - up to 1000 feet away. Features Extends any unbalanced analog audio device up to 1000 feet (300 meters) from the source One CAT-5e cable used for extension Bidirectional transmission for speaker and mic Specifications Frequency Response: 20Hz - 20kHzInput impedance: 1K Ohm Output impedance: 0.1 Ohm Audio Connectors: Mini-phone Stereo 3.5mmLink Connector: RJ-45 Shielded Power Supply: 5V DC Power Consumption: 5W (max)Dimensions: 1.3" W x 0.8" H x 3.7" DShipping Weight: 3 lbs.