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memo: features led torch (except 328) up to 5 kilometer range 8 channels ptt function scan channel function monitor function call tone function automatic squelch function low baterry alert function key tone function mini boxs wide long and high :15.15*9.25*15.5cm application children's play area of family communication family elders call a family of outdoor activities travel by car cars the mapping of traffic forestry business areas industrial and mining logistics scheduling security entertainment hotel restaurant office automation property my skype : huangshhky