GEF1000 Features: * Extends any unbalanced analog audio device up to 1000 ft from the source * Bi-directional transmission for analog speaker and microphone * Audio connectors: Mini-phone Stereo 3.5mm * Link connector: RJ-45 shielded Includes: * Includes 1 CAT-5e cable used for extension, Audio Extender S Sender Unit, Audio Extender R Receive Unit, 6 ft audio cable, 5V external power supply Specifications: * Frequency response: 20Hz - 20kHz * Power supply: 5V DC * Power consumption: 5 watts (max) Dimensions: * Dimensions: 1"" H x 1"" W x 4"" D