This Alinco's DMR transceiver packs a lot of performance into a compact and rugged polycarbonate body. Designed to resist dust and splash, the DJ-MD40 features specs such as 1W audio output with a large speaker and 2.5ppm frcquency stability. Capable of operating 5W output in analog and digital with mixed mode.1000 channels programmable in 64ch per zone ... in a hôtel, shopping mall, theme-park, exhibition hall, for business, construction, factory, warehouse, stadium... where communication cornes first, the DJ-MD40 is a brilliant choice for everyone!