1. [+ VOL -] volume:

This volume is to adjust the loudness of alarm sound.

2. [BEEP/VOICE] select button:

You can change the alarm type between the electric sound alarm and the voice alarm (in Chinese).

3. [CITY] button:

This button is to change the level of sensitivity to detect the radar band.

City mode (lower sensitivity): Sensitivity Lamp [(((Y)))] will be lit in red.  This mode is suitable when driving the car in the city area in rather low speed.

Highway mode (normal sensitivity): Sensitivity Lamp [(((Y)))] will not be lit. This mode is suitable when driving the car in suburb or on the highway in rather high speed.

4. [AAC] (Auto Alarm Control-) button:

This function detects the speed of the car by sensing the alternator noise to mute the alarm during driving slowly or parking the car.  The speed point to mute the alarm can be set manually in addition to the preset point (3,000 4,000 r.p.m.).

How to turn AAC ON: Press [AAC] button while AAC is OFF. While AAC is ON, Power LED will be lit in red or green.

How to turn AAC OFF: Press [AAC] button while AAC is ON. While AAC is OFF, Power LED will be lit in orange.

How to set the speed point to mute the alarm manually:

(1) Stepping on the accelerator pedal lightly, press [AAC] button at the preferable r.p.m. (rotation per minute) to mute the alarm.

(2) When the speed of the car exceeds the speed point set at above (1), the color of Power LED will change from Red (no alarm) to Green (stand-by for alarm).

(3)  To change the speed point to mute the alarm, press  [AAC button while Power LED is lit in Red or Green.

5. [T/MUTE] button (TEST/MUTE button):

This is to test the alarm sound or mute the alarm. Also this is used to adjust the volume of the alarm sound.

6. Indication indow

On the lower right corner of the back mirror, there is the Indication Window.  Looking at this window, you can check the status of radar/laser signal reception, power, alarm and sensitivity as follows.

((()))  Radar/Laser reception lamp:

     X band:

Alarm: Caught the radar signal → intermittent alarm (pi..pi..pi, 5 sec.) →Voice alarm → Continual alarm (pipipipi.)

((())) lamp: Lit in Red

K/New K band:

Alarm: Caught the radar signal → intermittent alarm (bi..bi..bi, 5 sec.) →Voice alarm → Continual alarm (bibibibi.)

((())) lamp: Lit in Yellow

Ku band:

Alarm: Caught the radar signal → intermittent alarm (kyui..kyui..kyui, 5 sec.) →Voice alarm → Continual alarm (kyui,kyui,kyui.)

((())) lamp: Lit in Yellowish Green

Ka band:

Alarm: Caught the radar signal → intermittent alarm (kyolo..kyolo..kyolo, 5 sec.) →

Voice alarm → Continual alarm (kyolo.kyolo.kyolo.)

((())) lamp: Lit in Green

lASER band:

Alarm: intermittent alarm (piroro..piroro..piroro, 5 sec.) →

Voice alarm → Continual alarm (piroro,piroro,piroro.)

((())) lamp: Lit in Orange

Pilot Lamp:

      When MRV-66T is connected to the cigarette lighter socket, Pilot Lamp will be lit on.

      Pilot Lamp also shows the status of AAC (Auto Alarm Control). (Ref. above article 4)

))) Alarm Lamp:

       When MRV-66T detects the radar signal, this lamp will be lit or blink in red.

(((Y))) Sensitivity Lamp:

      Sensitivity Lamp indicates the level of sensitivity (Highway mode/City mode).

      (Ref. above article 3.)