Specifications include, but are not limited to: 125 Listen Technologies LR-5200-072-P1; 72Mhz DSP RF Receiver with included induction loop lanyard and single ear piece combo. Acceptable Equivalent 5 Listen Technologies LT-800-072; 72Mhz Base Station/Transmitter Acceptable Equivalent 1 Listen Technologies LA-116; Dipole Coaxial Antenna Acceptable Equivalent 5 Listen Technologies LA-122; Antenna Mount Acceptable Equivalent 5 Listen Technologies LA-326; Rack Mount Kit Acceptable Equivalent 50 Listen Technologies LA-402; Stereo Ear Buds 1/8" Connector Acceptable Equivalent 10 Listen Technologies LA-381; 12 Bay Charger Tray Acceptable Equivalent 12 Listen Technologies LA-303; ADA Notification Sign, Multi-Lingual Acceptable Equivalent 12 Listen Technologies LA-365; Li-Ion Battery Pack for the LR-5200 Receiver Packs (Line item #1) Acceptable Equivalent 200 Listen Technologies LA-113; Lowloss RG-8 Shielded 50ohm Coaxial Cable; Single run of 200 feet. Acceptable Equivalent.