1.通电后，ＬＥＤ打示灯亮，音量达到最响。

2.当按下加或减的音量调整键后，音量会在1Ｓ内进行调整音量。

3.当同时按下加减键后，ＬＥＤ指示灯闪3下，后记录此功能。

4.当断电后现次打开，音量会渐渐回到上一次保存的音量。-1 powered, LED lights hit show, the volume reaches the loudest. (2) When you press the plus or minus keys to adjust the volume, the volume will be adjusted in the 1S volume. 3 When pressing the plus or minus button, LED indicator light flashes three under after writing this feature. 4 When the present times after power turned on, the volume will gradually return to the last saved volume.