1. Introduction
The Nonstop NSO2-BK is a versatile hotel alarm clock designed for convenience and functionality. It features a clear digital display, multiple charging options including USB-C, and an intuitive interface for setting time and alarms. This manual provides detailed instructions for setting up and operating your alarm clock.

Figure 1: Front view of the Nonstop NSO2-BK USB-C Hotel Alarm Clock.
2. Product Features
- Digital Time Display: Clear and easy-to-read time.
- Dual Alarm Function: Set two independent alarms.
- Snooze Function: Temporarily silence the alarm.
- Display Dimmer: Adjust screen brightness for comfort.
- USB-C Charging Port: Modern charging for compatible devices.
- USB-A Charging Port: Standard USB charging for various devices.
- Bluetooth Speaker: Connect your smartphone or other devices to play audio.
- Relaxation Sounds: Built-in sound machine for sleep or relaxation.

Figure 2: Close-up of the USB-A and USB-C charging ports on the alarm clock.
3. Setup
3.1 Power Connection
- Unpack the alarm clock and all accessories.
- Connect the power adapter to the DC input port on the back of the alarm clock.
- Plug the power adapter into a standard electrical outlet. The display will light up.
3.2 Backup Battery (Not included)
For continuous timekeeping during power outages, insert 2 AAA batteries (not included) into the battery compartment on the bottom of the unit. The backup battery maintains time settings but does not power the display or alarm functions.
4. Operating Instructions
4.1 Setting the Time
- Press and hold the TIME SET button (often labeled 'M' or a clock icon) for 3 seconds until the hour digits flash.
- Use the HR (Hour) and MIN (Minute) buttons to adjust the time.
- Press TIME SET again to confirm and exit time setting mode.
4.2 Setting the Alarm
The NSO2-BK supports two independent alarms (Alarm 1 and Alarm 2).
- Press and hold the ALARM 1 or ALARM 2 button (bell icon) for 3 seconds until the hour digits flash.
- Use the HR and MIN buttons to set the desired alarm time.
- Press the respective ALARM button again to confirm the alarm time.
- To activate/deactivate an alarm, short press the corresponding ALARM button. An indicator light will appear/disappear on the display.
4.3 Snooze Function
When the alarm sounds, press the large SNOOZE button on top of the unit to temporarily silence the alarm for 9 minutes. The alarm will sound again after the snooze period.
4.4 Display Brightness Control
Press the SNOOZE/DIMMER button (or a dedicated dimmer button if available) repeatedly to cycle through different brightness levels for the display. Select the level that is most comfortable for you.
4.5 Charging Devices
The NSO2-BK provides convenient charging for your electronic devices:
- USB-C Port: Located on the front, plug in your USB-C compatible device for fast charging.
- USB-A Port: Located on the front, plug in your standard USB-A compatible device for charging.
4.6 Bluetooth Speaker
To use the alarm clock as a Bluetooth speaker:
- Press the MODE button (labeled 'M') until 'BT' appears on the display.
- On your mobile device, enable Bluetooth and search for available devices.
- Select 'A21-B' (or similar model name) from the list to pair.
- Once paired, you can play audio from your device through the alarm clock's speaker.
Video 1: Demonstrates various functions including time setting, alarm setting, snooze, brightness, and charging on a similar multifunctional alarm clock. Note: Specific button labels may vary slightly from your model.
5. Maintenance
- Clean the unit with a soft, dry cloth. Do not use liquid cleaners or abrasive materials.
- Keep the unit away from direct sunlight, heat sources, and moisture.
- Do not attempt to disassemble or repair the unit yourself. Contact customer support for assistance.
6. Troubleshooting
- No Power/Display Off: Ensure the power adapter is securely plugged into both the alarm clock and a working electrical outlet. Check if the power outlet is functional.
- Alarm Not Sounding: Verify that the alarm is activated (indicator light on) and the alarm time is correctly set. Check the alarm volume settings.
- Charging Not Working: Ensure your device is compatible with USB-C or USB-A charging. Check the charging cable for damage.
- Bluetooth Pairing Issues: Ensure the alarm clock is in Bluetooth pairing mode ('BT' displayed). Turn off and on Bluetooth on your mobile device and try pairing again.
7. Specifications
| Specification | Detail |
|---|---|
| Model | NSO2-BK |
| Item Weight | 2 pounds |
| ASIN | B0CKCNX688 |
| Date First Available | July 29, 2024 |
8. Warranty and Support
This Nonstop NSO2-BK USB-C Hotel Alarm Clock comes with a 365-Day Warranty from the date of purchase. For any product-related inquiries, technical support, or warranty claims, please contact our customer service team.
- Return Policy: 30-day refund/replacement period.
- Warranty Period: 365 days from purchase.
- Support Email: Andoservice@outlook.com





