Specifications include, but are not limited to: 18 each 900 MHz Radio packs. Single volume, full duplex. Three conferences per radio pack with IP‐67 rated enclosure and a backlit LCD display. Additional capacity to add 18 more users in full time, full duplex mode, 2.4 GHz Additional Capacity for Up to 32 users in 900 MHz, High Density Mode. Additional Capacity for Up to 32 users in 2.4 GHz, High Density Mode. (High Density mode empowers scalability beyond coaches for back‐up QBs, managers, trainers, techs and support personnel) 2 each X system 4 x 4 control units to establish infrastructure allowing for system wide access, control and monitoring for any active X‐System device. 1 each X‐System Coaches communication sideline cart. Cart comes with 27RU shock mount rack, solid state PC, X‐ware software, 19” touchscreen/user interface and keyboard, mast system, wired system, power distribution, and UPS back up 4 each 900 MHz Radio Transceivers. Each one supports 6 normal radio packs and up 32 high density radio packs. Power is provided over an X‐Net copper connection. 12 each Smart boom Pro single ear headsets w/dynamic Mic and 4 pin female XLR. 7 each Smart boom pro double ear headsets w/dynamic Mic and 4 pin female XLR. 4 each 5 bay battery charger. Charges lithium polymer batteries. Includes power supply and power cord. 18 each Rechargeable batteries. Lithium Polymer, 3.6GVDC, 2000 MAH 1 X system Maintenance and support contract