LENRUE F4

LENRUE TouchGo F4 Bluetooth Speaker

Instruction Manual

1. Product Overview

The LENRUE TouchGo F4 is a compact, portable Bluetooth speaker designed for clear audio and ease of use. It features touch controls, Bluetooth 5.0 connectivity, and supports TWS (True Wireless Stereo) pairing for an enhanced audio experience. The speaker comes with a hard EVA travel case for protection and portability.

LENRUE TouchGo F4 Bluetooth Speaker

Figure 1: LENRUE TouchGo F4 Bluetooth Speaker.

2. Package Contents

Please check the package for the following items:

3. Setup

3.1 Initial Charging

Before first use, fully charge the speaker. Connect the provided TYPE-C charging cable to the speaker's charging port and a compatible USB power adapter (not included). The charging indicator light will show the charging status. A full charge typically takes approximately 4 hours.

3.2 Powering On/Off

3.3 Bluetooth Pairing

To connect the speaker to your device:

  1. Ensure the speaker is powered on and in pairing mode (the indicator light will typically flash blue).
  2. On your device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
  3. Select "ToughGo" or "LENRUE TouchGo" from the list of devices.
  4. Once connected, you will hear a confirmation sound, and the indicator light will turn solid blue.

The speaker will automatically reconnect to the last paired device when powered on, if the device is within range and Bluetooth is enabled.

LENRUE TouchGo F4 Bluetooth Speaker Touch Controls

Figure 2: Speaker with touch controls for sensitive and elegant operation.

3.4 TWS Wireless Pairing (Connect Two Speakers)

To achieve dual-channel stereo sound, you can pair two TouchGo F4 speakers together:

  1. Power on both TouchGo F4 speakers.
  2. Ensure both speakers are disconnected from any other Bluetooth devices.
  3. On one of the speakers, press and hold the "+" button until you hear a prompt indicating TWS pairing mode.
  4. The two speakers will automatically pair with each other. You will hear a "beep" sound upon successful TWS pairing.
  5. Now, connect your device's Bluetooth to the device name "ToughGo". Both speakers will play audio in stereo.
Two LENRUE TouchGo F4 Bluetooth Speakers paired for TWS stereo sound

Figure 3: Two speakers connected for TWS wireless stereo pairing.

4. Operating Instructions

4.1 Touch Controls

The speaker features intuitive touch controls located on the top surface:

4.2 Hands-Free Calling

The speaker includes a built-in microphone for hands-free calls:

LENRUE TouchGo F4 Bluetooth Speaker supporting hands-free calling

Figure 4: Speaker with hands-free calling capability.

4.3 Battery Life and Power Saving

The speaker is equipped with a 1200mAh lithium-ion battery, providing 6-15 hours of music playback at 2/3 volume. To conserve power, the speaker will automatically shut down if Bluetooth is disconnected for 30 minutes.

5. Maintenance

5.1 Cleaning

To clean the speaker, use a soft, dry cloth. Do not use abrasive cleaners, solvents, or immerse the speaker in water.

5.2 Storage

When not in use for extended periods, store the speaker in its hard EVA travel case in a cool, dry place. Avoid extreme temperatures and direct sunlight.

LENRUE TouchGo F4 Bluetooth Speaker with hard EVA travel case

Figure 5: Speaker with its protective hard EVA travel case.

6. Troubleshooting

ProblemPossible CauseSolution
Speaker does not turn on.Low battery; Power button not pressed correctly.Charge the speaker fully; Press and hold the power button for a few seconds.
Cannot pair with Bluetooth device.Speaker not in pairing mode; Device Bluetooth off; Speaker already connected to another device.Ensure speaker is in pairing mode (flashing blue light); Turn on Bluetooth on your device; Disconnect from other devices and try again.
Poor sound quality / Muffled sound.Speaker placement; Obstructions; Low volume.Ensure the speaker is placed on a flat, open surface, ideally not directly on its bottom where the speaker grille is located. Try placing it on its side for clearer sound. Remove any obstructions; Adjust volume on both speaker and device.
TWS pairing fails.Speakers already paired to a device; Incorrect pairing procedure.Ensure both speakers are disconnected from any Bluetooth devices before initiating TWS pairing. Follow the TWS pairing steps precisely.
No sound.Volume too low; Paused playback; Device not connected.Increase volume on both speaker and device; Press play; Verify Bluetooth connection.

7. Specifications

FeatureDetail
Model NumberF4
Connectivity TechnologyBluetooth 5.0
Speaker Maximum Output Power5 Watts
Power SourceBattery Powered (1 Lithium Ion battery included)
Battery Capacity1200mAh
Playtime6-15 hours (at 2/3 volume)
Charging TimeApproximately 4 hours
Control MethodTouch
Product Dimensions3.15 x 3.15 x 1.18 inches
Item Weight9 ounces
Special FeaturePortable, Hands-Free Calling, TWS Pairing

8. Warranty and Support

For warranty information and customer support, please refer to the documentation included with your purchase or contact LENRUE customer service directly. Contact details can typically be found on the official LENRUE website or through your retailer.

Related Documents - F4

Preview LENRUE A2 Bluetooth Speaker: AUX Connection Guide
Instructions on how to connect the LENRUE A2 Bluetooth Speaker using the AUX input for audio playback.
Preview Lenrue F9 Wireless Speaker User Manual
Detailed user manual for the Lenrue F9 Wireless Speaker. Learn about packing contents, playback controls, technical specifications, connecting via Bluetooth, TWS stereo pairing, Alexa setup, and FCC compliance information.
Preview LENRUE F62 Wireless Speaker User Manual
User manual for the LENRUE F62 Portable Wireless Speaker, covering package contents, wireless connection, button functions, specifications, TF card mode, TWS pairing, Alexa connection, and customer support.
Preview LENRUE Soundmate Wireless Speaker User Manual
Comprehensive user manual for the LENRUE Soundmate Wireless Speaker, covering operation, true wireless pairing, Alexa connection, specifications, and FCC compliance.
Preview LENRUE F21 Portable Wireless Speaker User Manual
User manual for the LENRUE F21 Portable Wireless Speaker, detailing its features, specifications, connection methods, TWS pairing, Alexa connection, and usage tips.
Preview LENRUE A25 Wireless Speaker User Manual
Detailed user manual for the LENRUE A25 Wireless Speaker, covering product introduction, usage, system settings, cautions, packing list, specifications, troubleshooting, and FCC information.