Listen Technologies LP-40-072-01 - Intelligent DSP RF Receiver 6-Pack (72 MHz)For businesses, schools, or venues that need to add more capacity to their existing 72 MHz RF system, the LP 40 072 Intelligent DSP RF Receiver 6 Pack includes everything needed to provide more customers and clients with exceptional assistive listening audio performance. Each pack includes six (6) of our LR 4200 072 digital RF receivers, which feature Listen Technologies unique DSP SQ (TM) noise reduction technology, an OLED display, dual 3. 5 mm