Signaling - Quick Call II, DTMF, part of the MDC1200 Power output - "VHF-1-25W, UHF - 1-25W ,350-380MHz - 1-25W" Option board -- Keyboard - No Screen -- Emergency call feature -- U.S. military standards - the U.S. military standard 810 C, D and E Weight 1010g Frequency -146-174MHz/438-470MHz Channel capacity -64 Dimensions (X-X-thick)-44mm x 169mm x 118mm