Introduction
This manual provides detailed instructions for the operation and maintenance of your Lenoxx AM/FM Alarm Clock Radio. Please read this manual thoroughly before using the product to ensure proper function and to maximize your user experience. This device combines an AM/FM radio with a dual alarm clock, featuring a clear green LED display and convenient snooze and sleep functions.

Figure 1: Front view of the Lenoxx AM/FM Alarm Clock Radio, displaying the time on its green LED screen.
Product Features
- Bright 1.2” Green LED Display: Designed for easy readability both day and night, the large 1.2-inch green LED display provides clear, sharp numbers that are gentle on the eyes. Its subtle glow offers excellent visibility without being too harsh in a dark room, making it ideal for bedrooms.
- Convenient Snooze and Sleep Functions: Enjoy the flexibility of simple snooze and sleep controls, allowing you to grab a few extra minutes of rest or drift off to your favorite radio station. These features make waking up and falling asleep more comfortable and tailored to your personal schedule.
- AM/FM Radio with 20 Memory Presets: Tune into your favorite stations with ease thanks to the built-in AM/FM radio featuring 20 programmable memory presets. With just a button press, you can instantly access your most-loved music, talk shows, or news without the hassle of scanning manually.
- Compact and Reliable Design: This clock radio boasts a sleek, compact build that fits seamlessly on any bedside table or nightstand. Despite its small size, it delivers reliable performance, helping you start your mornings on time, every time, with dependable alarms and clear radio sound.
- Dual Alarm System for Extra Security: The dual alarm capability provides added peace of mind, perfect for setting separate wake-up times for different needs or for couples. Whether you’re waking early for work or setting a weekend sleep-in reminder, you’ll have extra security and control over your mornings.
Controls and Display
Familiarize yourself with the buttons and display elements of your alarm clock radio for optimal use.

Figure 2: Top panel controls and display elements.
Control Buttons:
- TU+ / MIN: Tune Up / Minute adjustment button.
- TU- / HOUR: Tune Down / Hour adjustment button.
- ON/OFF / AM/FM: Power On/Off button. Also switches between AM and FM radio bands.
- SNOOZE / SLEEP: Activates snooze function during alarm. Activates sleep timer during radio playback.
- VOL+ / AL2: Volume Up / Alarm 2 setting button.
- VOL- / AL1: Volume Down / Alarm 1 setting button.
- TIME / PRE/M+: Time setting button. Also used for setting and recalling radio presets.
Display Elements:
- Time Display: Shows current time in large green LED digits.
- PM Indicator: Lights up when the time is in the PM hours.
- AL.1 / AL.2 Indicators: Light up when Alarm 1 or Alarm 2 is active.
- Alarm Music Note Icons: Indicate if the alarm is set to radio or buzzer.
Setup
1. Power Connection
- Unpack the alarm clock radio and place it on a stable, flat surface.
- Plug the AC power cord into a standard wall outlet. The display will light up and flash "12:00", indicating it is ready for time setting.
- (Optional) For battery backup, insert 2 x AAA batteries (not included) into the battery compartment on the bottom of the unit. This will preserve time and alarm settings during a power outage.
2. Setting the Current Time
- Press and hold the TIME / PRE/M+ button until the hour digits begin to flash.
- Press the TU- / HOUR button repeatedly to adjust the hour. Observe the PM indicator for correct AM/PM setting.
- Press the TIME / PRE/M+ button again. The minute digits will begin to flash.
- Press the TU+ / MIN button repeatedly to adjust the minutes.
- Press the TIME / PRE/M+ button one last time to confirm and save the time. The display will stop flashing.
Operating Instructions
1. AM/FM Radio Operation
- Press the ON/OFF / AM/FM button to turn on the radio.
- Press the ON/OFF / AM/FM button again to switch between AM and FM bands.
- To tune to a station, press the TU+ / MIN or TU- / HOUR buttons. Press and hold for automatic scanning to the next clear station.
- Adjust the volume using the VOL+ / AL2 and VOL- / AL1 buttons.
- To save a preset:
- Tune to the desired station.
- Press and hold the TIME / PRE/M+ button until the preset number flashes.
- Use TU+ / MIN or TU- / HOUR to select the desired preset number (P01-P20).
- Press TIME / PRE/M+ again to confirm.
- To recall a preset: Briefly press the TIME / PRE/M+ button repeatedly to cycle through saved presets.
- To turn off the radio, press the ON/OFF / AM/FM button.
2. Setting Alarms (Alarm 1 and Alarm 2)
The clock radio features two independent alarms.
- Setting Alarm 1:
- Press and hold the VOL- / AL1 button until the alarm hour digits flash.
- Use TU- / HOUR to set the desired alarm hour (observe PM indicator).
- Press VOL- / AL1 again. The minute digits will flash.
- Use TU+ / MIN to set the desired alarm minutes.
- Press VOL- / AL1 again to select the alarm source: BUZZER or RADIO. The corresponding icon will appear on the display.
- Press VOL- / AL1 one last time to confirm and activate Alarm 1. The AL.1 indicator will light up.
- Setting Alarm 2: Follow the same steps as Alarm 1, but use the VOL+ / AL2 button instead of VOL- / AL1. The AL.2 indicator will light up when active.
- Disabling an Alarm: When an alarm is sounding, press the ON/OFF / AM/FM button to turn it off completely until the next set time. To disable an alarm permanently, press the corresponding alarm button (VOL- / AL1 or VOL+ / AL2) repeatedly until the AL.1 or AL.2 indicator disappears from the display.
3. Snooze Function
When an alarm sounds, press the large SNOOZE / SLEEP button located on the top of the unit. The alarm will temporarily stop and sound again after approximately 9 minutes. You can repeat the snooze function multiple times.

Figure 3: Activating the Snooze function.
4. Sleep Function
The sleep function allows you to fall asleep to the radio, which will automatically turn off after a set period.
- While the radio is playing, press the SNOOZE / SLEEP button repeatedly to cycle through the sleep timer options (e.g., 90, 60, 30, 15 minutes, OFF).
- The radio will play for the selected duration and then automatically turn off.
Maintenance
- Cleaning: Disconnect the power before cleaning. Use a soft, dry cloth to wipe the exterior of the unit. Do not use abrasive cleaners, waxes, or solvents as they may damage the finish.
- Placement: Place the unit on a stable, level surface away from direct sunlight, heat sources, and excessive dust or moisture. Ensure adequate ventilation around the unit.
- Antenna: For optimal FM reception, extend the wire antenna fully. For AM reception, rotate the unit for best signal.
Troubleshooting
| Problem | Possible Cause / Solution |
|---|---|
| No power / Display is off. |
|
| Alarm does not sound. |
|
| Poor radio reception. |
|
| Time/settings reset after power outage. |
|
Specifications
| Feature | Detail |
|---|---|
| Brand | Lenoxx |
| Model | CR21 (Implied from product link) |
| Display Type | Digital LED (Green, 1.2 inches) |
| Radio Bands | AM/FM |
| Memory Presets | 20 (for radio stations) |
| Alarm Type | Dual Alarm (Buzzer or Radio) |
| Special Features | Snooze, Sleep Timer |
| Power Source | AC Power (with optional battery backup) |
| Item Weight | 0.38 Kilograms |
| Colour | Black |
Warranty and Support
Lenoxx products are manufactured to the highest quality standards. For information regarding warranty coverage, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official Lenoxx website. Please retain your proof of purchase for warranty claims.
For further assistance, you may also contact the retailer where the product was purchased.