The LS-54 comes equipped with the LR-4200-072 receiver, Listen's new generation of personal listening products, iDSP or Intelligent Digital Signal Processing. The iDSP 72MHz receiver revolutionizes how an RF system works, offering precise clarity with 20 dB less hiss than other RF receivers.  
The new integrated neck loop improves the experience for people who have hearing aids and cochlear implants with telecoils. Sleek and small, the iDSP receiver has a field replaceable, non-proprietary rechargeable Lithium-ion battery, making obsolete the use of alkaline and NiMH batteries. Battery life is eight hours, with a 2.5-hour charge time.
The result is an innovative personal listening technology and solution that delivers an exceptional listening experience for end users and an optimal experience for the venues that provide listening devices.
Great for larger venues to deliver an optimum range of up to 1,500 ft. (457.2m).  Venues will benefit from managing the LR-4200 when locking on one channel is needed, but programming multiple channels are not or if the receiver channel is not changed regularly by the user.  
The included integrated neck loop/lanyard and signage ensures the system meets the minimum legislative requirements for venues with a capacity up to 100.  

  Includes:  One (1) LT-800-072-01 Stationary RF Transmitter (72 MHz), One (1) LA-122 Universal Antenna Kit (72 MHz and 216 MHz), One (1) LA-326 Universal Rack Mounting Kit, Four (4) LR-4200-072 Intelligent DSP RF Receiver (72 MHz), Four (4) LA-401 Universal Ear Speaker, Two (2) LA-430 Intelligent Earphone/Neck Loop Lanyard, One (1) LA-423 4-Port USB Charger, One (1) LPT-A107-B Dual RCA to Dual RCA Cable 6.6 ft. (2 m), One (1) LA-304 Assistive Listening Notification Signage Kit.