Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your JENSEN JCR-255 AM/FM Dual-Alarm Digital Clock Radio with Under-Pillow Vibrator. Please read this manual thoroughly before using the device to ensure proper function and to maximize your user experience. Keep this manual for future reference.
Safety Information
- Do not expose the unit to rain or moisture.
- Do not block ventilation openings.
- Ensure the power adapter is easily accessible.
- Use only attachments/accessories specified by the manufacturer.
- Refer all servicing to qualified service personnel.
Package Contents
- JENSEN JCR-255 Digital Clock Radio
- Under-Pillow Vibrator
- AC Adapter
- User Manual (this document)
Product Overview
Familiarize yourself with the components and controls of your JCR-255 unit.

Figure 1: Front and top view of the JCR-255 clock radio with key features labeled, including the 1.8" white LED display, snooze button, rotary dimmer control, 2 AMP USB charging port, and the vibrating remote with 3 level settings.

Figure 2: The JENSEN JCR-255 digital clock radio displaying the time 12:52, positioned next to its circular under-pillow vibrator. The clock features a large white LED display and a USB charging port on the front.

Figure 3: Side view of the JENSEN JCR-255 clock radio, showing the rotary dimmer control on the left side for adjusting display brightness. A speaker grille is visible on the right side.

Figure 4: Top-down view of the JENSEN JCR-255 clock radio, showing the array of control buttons on the top panel and the under-pillow vibrator placed next to it. The clock display shows 11:11.
Setup
1. Power Connection
- Plug the AC adapter into the DC IN jack located on the back of the unit.
- Plug the other end of the AC adapter into a standard 120V AC wall outlet.
- The unit is now powered on.
2. Battery Backup Installation
The JCR-255 requires 1 Lithium Metal battery (included) for backup power. This feature saves your time and alarm settings during a power outage.
- Locate the battery compartment on the bottom of the unit.
- Open the battery compartment cover.
- Insert the Lithium Metal battery, ensuring correct polarity (+ and -).
- Close the battery compartment cover securely.
3. Setting the Time
- Press and hold the TIME SET button until the display flashes.
- Use the HOUR and MINUTE buttons to adjust the time.
- Press TIME SET again to confirm and exit time setting mode.
Operating Instructions
1. Radio Operation (AM/FM)
- Press the RADIO ON/OFF button to turn on the radio.
- Press the AM/FM button to select the desired band.
- Use the TUNE + or TUNE - buttons to manually tune to a station.
- To auto-scan for stations, press and hold TUNE + or TUNE -.
- Adjust the volume using the VOLUME + or VOLUME - buttons.
Setting Radio Presets:
- Tune to the desired station.
- Press the MEMORY button. The preset number will flash.
- Use the PRESET + or PRESET - buttons to select a preset number (1-10 for AM, 1-10 for FM).
- Press MEMORY again to save the station.
- To recall a preset, press the PRESET + or PRESET - buttons while the radio is on.
2. Setting Alarms (Alarm 1 & Alarm 2)
The JCR-255 features dual alarms. You can set each alarm to wake you with a buzzer, radio, or the under-pillow vibrator.
- Press and hold ALARM 1 SET or ALARM 2 SET until the alarm time flashes.
- Use the HOUR and MINUTE buttons to set the desired alarm time.
- Press ALARM 1 SET or ALARM 2 SET again to select the wake mode (Buzzer, Radio, or Vibrator). The corresponding icon will light up.
- Press ALARM 1 SET or ALARM 2 SET one more time to confirm and exit alarm setting mode.
- To activate/deactivate an alarm, press the corresponding ALARM 1 ON/OFF or ALARM 2 ON/OFF button.

Figure 5: A woman sleeping peacefully, with the JENSEN under-pillow vibrator discreetly placed beneath her pillow, illustrating its intended use for silent or enhanced alarm notification.

Figure 6: An image showing the JCR-255's wireless vibrating remote under a pillow, with text explaining its function: "The JCR-255 will wake the soundest of sleepers, as well as those who are hearing impaired. The wireless vibrating remote has 3 levels of intensity and operates up to 32 feet from the JCR-255 - wake to vibration from under your pillow, the radio, or to an alarm."
3. Snooze Function
When an alarm sounds, press the SNOOZE button to temporarily silence the alarm for approximately 9 minutes. The alarm will sound again after the snooze period.
4. Sleep Timer
The sleep timer allows you to fall asleep to the radio, which will automatically turn off after a set period.
- While the radio is playing, press the SLEEP button repeatedly to cycle through available sleep times (e.g., 90, 60, 30, 15 minutes, OFF).
- The radio will play for the selected duration and then turn off automatically.
5. USB Charging Port
The JCR-255 features a front-mounted 2 Amp USB port for charging compatible devices.
- Connect your smartphone or other USB-powered device to the USB port using a compatible USB cable (not included).
- The device will begin charging.
- Note: This port is for charging only and does not support data transfer.

Figure 7: The JENSEN JCR-255 clock radio with a smartphone connected to its front USB port, illustrating the charging capability. The clock display shows 12:59.
Maintenance
Cleaning the Unit
- Disconnect the unit from the power source before cleaning.
- Use a soft, damp cloth to wipe the exterior surfaces.
- Do not use abrasive cleaners or solvents, as they may damage the finish.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not power on. | AC adapter not properly connected. | Ensure the AC adapter is securely plugged into the unit and a working wall outlet. |
| Alarm does not sound/vibrate. | Alarm not activated or set incorrectly. | Verify alarm time and wake mode are set correctly. Ensure the alarm is turned ON. Check vibrator connection if applicable. |
| Poor radio reception. | Antenna not extended or positioned correctly. Interference from other electronics. | Fully extend the FM wire antenna. For AM, rotate the unit for best reception. Move unit away from other electronic devices. |
| USB charging not working. | Device not compatible or cable faulty. | Ensure your device is compatible with USB charging. Try a different USB cable. |
Specifications
- Model: JCR-255
- Power Source: AC 120V, 60Hz
- Battery Backup: 1 x Lithium Metal battery (included)
- Display: 1.8" White LED
- Radio Frequencies: AM/FM
- USB Charging Output: 5V, 2A
- Product Dimensions: 6.16" (W) x 4.02" (H)
- Item Weight: 1.43 pounds
- Manufacturer: SPECTRA MERCHANDISING
Warranty and Support
This product is covered by a 90-day warranty from the date of purchase. For warranty service or technical support, please refer to the contact information provided with your purchase documentation or visit the JENSEN brand website.
Manufacturer: SPECTRA MERCHANDISING
UPC: 077283955518





