Chinese and English voice annunciation CTCSS/ CDCSS TOT Monitor Priority channel scanning Busy channel lockout High/ low power switch with side key Alarm function FM radio Compander on/ off Scrambler Auto whisper function VOX function Lighting function End-tone elimination V: 136Mhz-174Mhz U: 400Mhz-480Mhz 16 channels 58( W) * 112( L) * 34( T) mm F39 58( W) * 114( L) * 34( T) mm F36 58( W) * 114( L) * 36( T) mm A66 58 68 518S 618 618S 610 620 57( W) * 129( L) * 43( T) mm A528 58( W) * 125( L) * 41( T) mm A628 227g with battery 197g with battery 235g with battery 1250mAh( Li-ion) 1300mAh( Li-ion)