Designed for fixed installation, the Lectrosonics R400A receiver is a half-rack unit featuring Lectrosonic's digital hybrid technology. The dual antennas are an affirmation to it's Smart Diversity enhanced reception circuitry. The rear panel features both XLR and 1/4" phone output connections, both with output level control adjust. A comprehensive LCD displays pilot tone, antenna phase, transmitter battery status, audio level, RF level, battery timer, frequency, and transmitter switch settings.