Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your Emerson ER100401 Smartset Alarm Clock Radio. Please read this manual thoroughly before using the product to ensure proper functionality and to maximize your user experience.
Important Safety Information
- Do not expose this product to rain or moisture.
- Do not place objects filled with liquids, such as vases, on the apparatus.
- Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
- Protect the power cord from being walked on or pinched.
- Only use attachments/accessories specified by the manufacturer.
- Unplug this apparatus during lightning storms or when unused for long periods of time.
Product Overview
The Emerson ER100401 is a versatile alarm clock radio featuring a 1.4-inch Cyan LED display, 15W ultra-fast wireless charging, Bluetooth 5.0 speaker, and an additional USB charging port. It also includes a 2-level Cyan LED night light and a patented SmartSet automatic time setting system.

Figure 1: Front view of the Emerson ER100401 Smartset Alarm Clock Radio, showcasing its digital display and charging capabilities.
Key Components
- 1.4" Cyan LED Display: Large, easy-to-read time display with adjustable brightness.
- 15W Wireless Charging Pad: Located on top for ultra-fast charging of compatible devices.
- USB Charging Port (2.1A 5V): Located on the side/rear for wired charging of mobile phones and tablets.
- Bluetooth 5.0 Speaker: For wireless audio streaming.
- Control Buttons: Located on the top panel for setting time, alarms, radio, and dimmer.
- 2-Level Cyan LED Night Light: Integrated at the base for ambient lighting.
- AUX-IN Input: For connecting external audio devices.
Setup
1. Initial Power-On and SmartSet Time Setting
- Plug the power adapter into a standard AC outlet.
- The patented SmartSet system will automatically set the correct year, month, date, day, and time as soon as you plug it in. It also automatically recognizes Daylight Saving Time (DST).
- If the time is incorrect, press the TIME ZONE button to cycle through the available time zones until your local time is displayed.
2. Battery Backup Installation
A button cell battery (included) maintains time and alarm settings during power interruptions.
- Locate the battery compartment on the bottom of the unit.
- Open the compartment and insert the Lithium Ion button cell battery, ensuring correct polarity (+/-).
- Close the battery compartment securely.
Operating Instructions
1. Alarm Functions

Figure 2: Dual Radio-Buzzer Alarms feature.
- Setting Dual Alarms: Press AL1 or AL2 button to set individual alarms. Use TUNE +/- buttons to adjust the alarm time.
- Alarm Modes: Choose from three modes: Every Day, Weekdays Only, or Weekends Only. Press the WEEK button to cycle through these options.
- Wake to Radio or Buzzer: Select your preferred wake-up sound.
- Snooze/Repeat Alarm: Press the SNOOZE/VOL- button to temporarily silence the alarm.
- Crescendo Wakeup Control: The alarm volume gradually increases for a gentle wake-up.
2. Radio Functions
- FM Radio: Press the FM ON/OFF button to turn the radio on/off. Use TUNE +/- buttons to change stations.
- Programmable Sleep-to-Music Timer: Set a timer for the radio to play before automatically turning off.
3. Bluetooth Speaker

Figure 3: Bluetooth 5.0 Connectivity.
- Pairing: Press the BT button to activate Bluetooth pairing mode. Search for 'Emerson ER100401' on your device and connect.
- Streaming: Once paired, you can stream audio from your Bluetooth-enabled device to the clock radio.
- Digital Volume Controls: Adjust volume using the dedicated buttons on the unit.
4. Charging Functions

Figure 4: 2-Way Charging Solution.
- 15W Ultra Fast Wireless Charging: Place your Qi-compatible smartphone on the charging pad located on top of the unit. Ensure the phone is centered for optimal charging.
- USB Charging Port: Connect your mobile device to the 2.1A 5V USB port on the rear/side of the unit using a compatible USB cable.
5. Display and Night Light

Figure 5: Display Dimmer Settings.
- Dimmer Control: Press the DIMMER button to cycle through 3 levels of display brightness (Bright, Dim, Invisible) and an Auto Dimmer setting.
- Month/Date Display: Press the MODE button to momentarily display the current month and date.
- 2-Level Cyan Night LED: Press the LED button to turn the night light on/off and adjust its brightness level.
Maintenance
- Clean the unit with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Keep the unit away from direct sunlight, heat sources, and excessive dust.
- Ensure proper ventilation around the unit to prevent overheating.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power/Display off | Power cord not connected; Power outage. | Ensure power cord is securely plugged in. Check household power. |
| Time is incorrect | Incorrect time zone selected. | Press the TIME ZONE button to select the correct time zone. |
| Wireless charging not working | Device not Qi-compatible; Device not properly aligned; Phone case too thick. | Ensure device supports Qi wireless charging. Reposition device on the charging pad. Remove thick phone cases. |
| Bluetooth not connecting | Bluetooth not enabled on device; Device too far from unit. | Ensure Bluetooth is enabled on your device. Move device closer to the clock radio. Press the BT button to re-enter pairing mode. |
| Radio static/poor reception | Antenna not extended; Interference. | Extend the FM antenna fully. Move the unit away from other electronic devices that may cause interference. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Emerson |
| Model Number | ER100401 |
| Color | Black |
| Display Type | Digital (1.4" Cyan LED) |
| Product Dimensions (W x D x H) | 6.22" x 2.95" x 3.54" |
| Item Weight | 1.65 pounds |
| Power Source | Corded Electric |
| Wireless Charging | 15W Ultra Fast |
| USB Charging Port | 2.1A 5V |
| Bluetooth Version | 5.0 |
| Connectivity Technology | AUX, USB, Bluetooth |
| Battery Backup | 1 Lithium Ion button cell battery (included) |
| Special Features | SmartSet Automatic Time Setting, Dual Alarms, FM Radio, Night Light, Dimmer Control |
| Frame Material | Plastic |
Warranty and Support
This product comes with a 90-day warranty from the date of purchase with valid proof of purchase. For technical support or warranty claims, please refer to the contact information provided with your product packaging or visit the official Emerson Radio website.
Official Product Video
Official product video showcasing the features of the Emerson ER100401 Smartset Alarm Clock Radio, including wireless charging, Bluetooth, and display options.



