Ideal for upgrading or expanding your existing 72 MHz RF system, the
Listen Technologies LP-39-072 Intelligent DSP RF Receiver 4-Pack includes
everything needed to provide your visitors with exceptional assistive
Each pack includes four Listen Technologies LR-4200-072 digital RF receivers,
which feature Listen Technologies’ unique DSP SQ (TM) noise reduction
technology, an OLED display, dual 3.5 mm output jacks, and more.
The Micro USB connection is used with free iDSP software for set up,
programming, firmware updates, inventory management and charging.