HT MOTOROLA HP GP-3188 Features : * Signalling - DTMF Signalling - DTMF * Power Output - 1-4W ( UHF) , 1-5W ( VHF) * Option Board - No | Keypad - No * Display - No * Emergency Button - No * Battery Life - 10 hours ( High Power) , 13 hours ( Low Power) -Wth Standard NiMH battery * MilSpec - MIL-STD 810C, D & E * Intrinsically Safe - No Weight ( gm/ kg) - 421gms ( With Standard NiMH battery) * Frequency - 146-174MHz 403-438MHz, 438-470MHz, 465-495MHz * Channels - 16 * Dimension ( H X W X D) - 126.5mm x 61.5mm x 43mm ( With Standard NiMH battery)