Introduction
Thank you for choosing the LENRUE Under Pillow Speaker V3 ProMAX. This device is designed to provide a peaceful and non-disturbing audio experience for sleeping, featuring Bluetooth 6.0 connectivity, built-in white noise options, and an auto-off timer. Its ultra-slim design ensures comfort for side sleepers without the need for traditional headphones or earbuds. Please read this manual carefully to ensure proper use and optimal performance of your speaker.
What's in the Box
- LENRUE Under Pillow Speaker (V3 ProMAX)
- Type C Powered Cable
Product Overview
The LENRUE V3 ProMAX speaker features an intuitive control panel and essential ports for connectivity and charging.

Image: Front view of the LENRUE V3 ProMAX speaker, highlighting the control buttons for power, white noise selection, and timer settings.
Control Buttons:
- Power Button: Press and hold to power on/off. Short press for play/pause (in Bluetooth mode).
- White Noise/Mode Button: Short press to cycle through built-in white noise sounds. Long press to switch between Bluetooth and TF card modes.
- Timer Button: Short press to set the auto-off timer (30/60/90 minutes).
Ports:
- USB-C Charging Port: For charging the device.
- TF Card Slot: For playing audio directly from a TF (MicroSD) card.

Image: The LENRUE V3 ProMAX speaker on a nightstand, showing the USB-C charging port and TF card slot, alongside a smartphone displaying Bluetooth pairing.
Setup
1. Charging the Speaker
Before first use, fully charge the speaker. Connect the provided USB-C cable to the speaker's charging port and the other end to a USB power adapter (not included) or a computer's USB port. The indicator light will show charging status and turn off when fully charged. A full charge supports all-night continuous playback.

Image: The LENRUE V3 ProMAX speaker connected to a USB-C charging cable, illustrating the charging process and its long battery life.
2. Bluetooth Pairing
- Power on the speaker by pressing and holding the Power button. The indicator light will flash, indicating it's in Bluetooth pairing mode.
- On your smartphone or Bluetooth-enabled device, go to the Bluetooth settings.
- Search for available devices and select "V3 ProMAX" from the list.
- Once connected, the speaker will emit a confirmation sound, and the indicator light will stop flashing.
3. TF Card Usage
Insert a TF (MicroSD) card with your desired audio files into the TF card slot. The speaker will automatically switch to TF card mode and begin playback. If it does not switch automatically, long press the White Noise/Mode button to cycle to TF card mode.
Operating Instructions
Power On/Off
- To power on, press and hold the Power button for approximately 3 seconds.
- To power off, press and hold the Power button for approximately 3 seconds.
Volume Control
Adjust the volume directly from your connected Bluetooth device. The speaker is designed for low-volume use under a pillow to avoid disturbing others.

Image: Close-up of the LENRUE V3 ProMAX speaker, illustrating its clear stereo sound and the ability to control volume for a balanced and mellow audio experience.
White Noise Selection
The speaker includes 8 soft white noise options. Short press the White Noise/Mode button to cycle through the available sounds, which include fans, steady rain, ocean waves, crackling bonfire, and more. These sounds feature seamless loops for uninterrupted relaxation.

Image: The LENRUE V3 ProMAX speaker placed in a natural environment, highlighting its upgraded 8 white noise options including waves, fans, and rain sounds for smooth sleep.
Sleep Timer
Utilize the auto-off timer to conserve power and prevent audio from playing all night. Short press the Timer button to select between 30, 60, or 90-minute auto-off settings. The speaker will automatically power off after the selected duration.

Image: The LENRUE V3 ProMAX speaker positioned under a pillow, demonstrating its sleep timer auto-off function with options for 30, 60, and 90 minutes.
Maintenance
To ensure the longevity and optimal performance of your LENRUE Under Pillow Speaker, follow these maintenance guidelines:
- Cleaning: Wipe the speaker with a soft, dry cloth. Do not use liquid cleaners or abrasive materials.
- Storage: Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid Moisture: Keep the speaker away from water and high humidity.
- Handle with Care: Avoid dropping or subjecting the speaker to strong impacts.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Low battery or no charge. | Charge the speaker using the provided USB-C cable. Ensure the charging cable and adapter are functioning correctly. |
| Cannot pair via Bluetooth. | Speaker is not in pairing mode or too far from the device. | Ensure the speaker is powered on and the indicator light is flashing (pairing mode). Move the speaker closer to your device. Turn off and on Bluetooth on your device. |
| No sound or low volume. | Volume on connected device is too low or speaker is in the wrong mode. | Increase the volume on your connected Bluetooth device. Ensure the speaker is in the correct mode (Bluetooth or TF card). |
| Battery life is shorter than expected. | Speaker not fully charged or high volume usage. | Ensure the speaker is fully charged before use. Using the speaker at higher volumes can reduce battery life. |
| White noise sounds are not soothing. | Personal preference or specific sound selection. | Cycle through the 8 white noise options by short pressing the White Noise/Mode button to find a sound that suits your preference. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | V3 ProMAX |
| Connectivity Technology | Bluetooth 6.0, TF Slot |
| Audio Output Mode | Stereo |
| Speaker Maximum Output Power | 5 watts |
| Additional Features | 8 Soft White Noise Sounds, 3 Sleep Timer Modes (30/60/90 min), Auto-Off Indicator Light |
| Charging Port | USB-C |
| Item Dimensions (D x W x H) | 3.74"D x 1.8"W x 3.74"H |
| Mounting Type | Under Pillow |
| Compatible Devices | Smartphone and other Bluetooth-enabled devices |
Warranty and Support
The LENRUE Under Pillow Speaker V3 ProMAX comes with a 1-year warranty from the date of purchase. This warranty covers manufacturing defects and workmanship under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or normal wear and tear.
For technical support, warranty claims, or any questions regarding your product, please contact LENRUE customer service through the retailer where you purchased the product or visit the official LENRUE website for contact information.