Scour your phone bill and see if one or two of those extras can be turned off.
清洗你的账单,同时看一下是否一至两个额外事额能够被关闭。
Unless auto-detect, user also can control ON/OFF by hand. No one activities for a while, Radar Detector will automatic turn off power to reduce power bill amount and extended product life.
除自动侦测外,使用者亦可手动控制开关,当一段时间侦测无人员活动时,雷达灯控即会自动关闭电源,节费电费并延长产品使用寿命。
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