This Package includes: 2-Pendant Handheld Transmitters, 4-Atlas Sound SD72W Loudspeakers, 1-Charging Station, 1-Receiver/Amplifier, 4-81-8 Tile Bridges, 4-CS95-8 Enclosures, 2-IR Receiver Domes with Cables, Rechargeable Batteries, Power Supplies and 100 ft of plenum rated 18 gauge speaker cable. The Atlas Learn AL2430 system is an in-classroom sound reinforcement solution designed for use in K-12 and higher education facilities or where a room constrained public address system is required. This complete audio enrichment package consists of amplifier receiver, wireless microphones, and docking station designed to allow the teacher and students to walk freely around the room with the infrared microphones system control units and project their voices through installed speakers. The versatile and ergonomic AL2430 pendant handheld microphone transmitter allows both teachers and students freedom of movement without bulky electronics or cumbersome wires. The dual mode transmitter allows teachers to control microphone volume, overall system volume and mute settings via side mounted soft touch controls. In addition, when PANIC and MODE controls are pressed simultaneously for 3 seconds a contact closure is triggered on the AL2430 receiver. The compact, ergonomically designed AL2430 receiver/amplifier provides intuitive control of all system components, visual indication of system status and interface for panic condition feedback to secondary security systems. Unit may be wall mounted via integral key hole slots or shelf mounted for easy accessibility.