138. SYSTEM SETUP8.1 Menu(1) MAIN MENU: Item subject (First menu layer does not have a subject).(2) Menu Layer Indication: The device consists of four menu layers.(3) Menu Operation and SetupPress《▲》or《▼》button to move the cursor ( > ).Press《►》button enter the sub menu.Press《MENU》button: Under second or third menu layer, the system will return to the previousmenu layer (second layer to first layer or third layer to second layer) andauto updates the modified data. Under main menu (first menu layer), the system will enter live mode.Press《►》button, to increase or decrease the setting values that has beenhighlighted.(4) Menu Layer Operation Guide■ :First Menu Layer (Main Menu)■■ :Second Menu Layer■■■ :Third Menu Layer■■■■ :Fourth Menu Layer(2)(1)(3) > SYSTEM SETUPCAMERA SETUPRECORD SETUPBUZZER SETUPEVENT LISTUSB DEVICE SETTINGHARD DRIVE SETUP(4) PRESS (▲▼), THEN (►)PRESS (MENU) TO EXIT