---
title: Driver Monitoring System Features – DR770X Box Pro Series
description: "## **Driver Monitoring System Features**   | **Functions** | **Descriptions** | **Beep Alert** | | --- | --- | --- | | **Power On** | When power is turned on, the DMS booting up. | X | | **Detected** |…"
url: "https://manual.blackvue.com/docs/dr770x-box-pro/additional-features/driver-monitoring-system-features-dr770x-box-pro-series/"
updated: "2025-01-10"
category: Additional Features
---

# Driver Monitoring System Features – DR770X Box Pro Series

## **Driver Monitoring System Features**

 

| **Functions** | **Descriptions** | **Beep Alert** |
| --- | --- | --- |
| **Power On** | When power is turned on, the DMS booting up. | X |
| **Detected** | Detects the face within the range of 15 degree to top, bottom, left and right based on the center of the lens. | DMS On |
| **Undetected** | When driver is out of detection range for 60 seconds, it will be detected as No driver. | X |
| **Drowsiness** | When driver's eyes close for more than 1.5 second, it will be detected as drowsy. | Beep + Drowsy |
|   **Distraction** | When driver turns head to one side (left or right) more than about 50 degrees for 3 seconds, it will be detected as distracted. |   Beep + Distraction |
| **Seatbelt** | When driver does not wear a Seatbelt for 30 seconds , DMS alert driver to wear the seatbelt. | Beep + Fasten your seatbelt |
| **Power Off** | When power is turned off, the DMS is turned off. | X |

 

**![](https://manual.blackvue.com/wp-content/uploads/2020/11/NOTE-2.svg)Note**

- Please note that if a driver is wearing a mask, eye patch, sunglasses, or a hat, the DMS may not operate as intended.
- Strong sunlight may prevent the seatbelt detection.
- Drive position can be set up in the settings. (Left Hand Drive / Right Hand Drive)
- DMS Calibration is require for Distraction.
- Among the functions, Distraction/Drowsiness is not available if GPS is under threshold settings. (Threshold: 0km/h~80km/h)
- Algorithm may change in order to improve accuracy.