Ritron RQX-111 Two-way RadioKenwood RQX 111 Install the Q Series radio callbox virtually anywhere to maximize efficiency and improve safety or service response times. Deploys easily no wires, no trenching, no construction required. Can be used stand alone using alkaline batteries or can be powered using external AC adapter. The Q Series callbox provides long range, 2 way communication and allows staff and visitors to communicate with your 2 way radio equipped personnel from