1. Introduction
The DUKA MT3 is a versatile multi-functional digital clock designed for home, office, or car use. It integrates several useful features including an alarm clock, temperature and humidity display, a learning timer, and an intelligent offline voice assistant. Its intuitive design and long-lasting battery make it an ideal companion for time management and environmental monitoring.

2. Package Contents
Please check the box for the following items:
- DUKA MT3 Host Unit x 1
- Charging Cable x 1
- Instruction Manual x 1

3. Specifications
| Feature | Detail |
|---|---|
| Item Name | Multifunctional Timer |
| Product Model | MT3 |
| Product Size | 142 × 52 × 86.5 mm |
| Net Weight | 233g |
| Main Material | LCD, Plastic |
| Battery Capacity | 1800mAh (Rechargeable Lithium Battery) |
| Input Parameters | 5V ⎓ 1A |
| Temperature Range | -9.9℃ ~ 60℃ (14℉ ~ 140℉) |
| Humidity Range | 10% ~ 99% RH |
| Display Type | Digital LCD (5.2-inch HD large screen) |
| Battery Included | Yes |
4. Setup
4.1 Charging the Device
Before first use, or when the battery indicator is low, charge the DUKA MT3:
- Connect the provided charging cable to the charging port on the back of the device.
- Connect the other end of the charging cable to a standard USB power adapter (5V ⎓ 1A recommended).
- Charge the device for approximately 2 hours for a full charge. The battery indicator on the display will show charging status.

4.2 Initial Power On
The device should power on automatically when connected to power or if the battery has sufficient charge. If not, lightly press the main button on the top of the device.
5. Operating Instructions
The DUKA MT3 features a main button (orange bar on top) and a side knob for various operations.
5.1 Setting Time and Date
- Press the side knob button to enter the timing setting mode.
- Rotate the knob to adjust the hour, minute, year, month, and day.
- Press the knob again to confirm each setting and move to the next parameter.
- Once all settings are confirmed, the device will return to normal display.

5.2 Setting Alarms
The DUKA MT3 supports two independent alarm settings and allows differentiation between working days and rest days.
- Access the alarm setting mode (specific steps may vary, refer to on-screen prompts).
- Select Alarm 1 or Alarm 2.
- Set the desired alarm time using the knob.
- Choose the alarm days: 5-day (Monday-Friday), 7-day (daily), or custom loop days.
- Confirm settings.

5.3 Countdown Timer
The device features a four-color timing ring to visually represent remaining time, aiding focus and time management.
- Rotate the side knob to set the desired countdown duration (from 1 to 60 minutes).
- Press the main button (orange bar) on the top of the device to start the countdown.
- The timing ring will visually decrease, changing colors to indicate different phases of time remaining: Blue (full time), Green (3/4 remaining), Orange (1/2 remaining), Red (1/4 remaining).


5.4 Snooze Function
When an alarm rings, you can activate the snooze function:
- Press and hold the main button (orange bar) on the top of the device. The alarm will pause for 5 minutes and then ring again.

5.5 Intelligent Offline Voice Assistant
The DUKA MT3 features an offline voice assistant for quick inquiries:
- Lightly press the main button (orange bar) on the top of the device to activate the voice assistant.
- You can ask basic questions such as "What's going on now?" to get the current time.
- The voice assistant does not require an internet connection or external power to function.

5.6 Temperature and Humidity Display
The device continuously monitors and displays the ambient temperature and humidity in real-time on its 5.2-inch HD screen. No specific operation is required for this feature.
5.7 Adjustable Volume
The DUKA MT3 offers adjustable volume settings for alarms and notifications. Locate the volume switch or setting in the device's menu to choose between Silent, Mid, or Treble sound levels.

5.8 Automatic Backlight
The display features an automatic backlight that activates between 22:00 (10 PM) and 6:00 (6 AM) for improved visibility in low-light conditions.
6. Maintenance
- Cleaning: Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Battery Care: To prolong battery life, avoid completely draining the battery frequently. Recharge when the low battery indicator appears. Avoid leaving the device plugged in constantly after it is fully charged.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on | Low battery or no power. | Connect to a power source using the charging cable and charge for 2 hours. Press the main button to power on. |
| Alarm does not sound | Alarm is disabled or volume is set to silent. | Check alarm settings to ensure it is enabled. Adjust the volume setting from silent to mid or treble. |
| Countdown timer not starting | Timer not set or main button not pressed. | Rotate the knob to set the desired time, then press the main button to start. |
| Voice assistant not responding | Main button not pressed correctly. | Ensure you lightly press the main button on the top of the device to activate the voice assistant. |
8. User Tips
- Utilize the four-color timing ring to visually manage study or work intervals, associating colors with different levels of focus or urgency.
- Take advantage of the 5/7 day alarm system to set distinct alarms for weekdays and weekends, preventing disturbance on rest days.
- Regularly check the temperature and humidity display to maintain an optimal indoor environment, especially in children's learning areas.
9. Warranty and Support
For warranty information and technical support, please refer to the contact details provided by your retailer or visit the official DUKA website. Keep your purchase receipt as proof of purchase.





