Introduction
Thank you for choosing the G90 Colorful Bluetooth Speaker with Alarm Clock. This compact and versatile device combines a high-quality portable speaker with a digital alarm clock, colorful LED lighting, and multiple playback options including Bluetooth, TF card, and FM radio. Its intuitive design and robust features make it an ideal companion for home use or on-the-go entertainment. Please read this manual carefully to ensure proper use and to fully enjoy all the features of your new speaker.
Safety Information
- Do not expose the device to extreme temperatures, direct sunlight, or high humidity.
- Keep the device away from water and other liquids. While the product is waterproof, prolonged submersion or exposure to strong jets of water should be avoided.
- Do not attempt to disassemble, repair, or modify the device yourself. Contact qualified service personnel for assistance.
- Use only a reputable charger for charging the device.
- Keep out of reach of children.
- Avoid dropping or subjecting the device to strong impacts.
Package Contents
Please check the package for the following items:
- G90 Bluetooth Speaker Unit
- USB Charging Cable
- User Manual (this document)
Note: This product is sometimes available in both clock and standard versions (without clock). Please verify your specific model upon receipt.
Product Overview
The G90 speaker features a sleek, spherical design with integrated controls and a digital display.


Controls and Ports:
- M (Mode Button): Short press to switch between Bluetooth, TF Card, and FM Radio modes.
- SET (Settings Button): Used for setting time and alarms.
- Play/Pause Button: Short press to play/pause music or answer/end calls. Long press to power on/off.
- Previous Track / Volume Down Button: Short press for previous track, long press to decrease volume.
- Next Track / Volume Up Button: Short press for next track, long press to increase volume.
- TF Card Slot: For inserting a TF (MicroSD) card for music playback.
- Charging Port: USB port for charging the device.

Setup
1. Charging the Speaker
- Connect the provided USB charging cable to the speaker's charging port.
- Connect the other end of the USB cable to a reputable USB power adapter (not included) or a computer's USB port.
- The charging indicator light will illuminate. Once fully charged, the light may change color or turn off.
- A full charge provides approximately 18 hours of usage time.
2. Power On/Off
- To Power On: Long press the Play/Pause button until you hear a power-on prompt and the display lights up.
- To Power Off: Long press the Play/Pause button again until you hear a power-off prompt.
3. Bluetooth Pairing
- Ensure the speaker is powered on and in Bluetooth mode (indicated by a specific icon or voice prompt). If not, short press the 'M' button to switch to Bluetooth mode.
- On your smartphone, tablet, or other Bluetooth-enabled device, enable Bluetooth and search for available devices.
- Select "G90" from the list of found devices.
- Once paired, you will hear a confirmation sound from the speaker.
4. TF Card Playback
- Insert a TF (MicroSD) card with MP3 audio files into the TF card slot.
- The speaker should automatically switch to TF card mode and begin playing music. If not, short press the 'M' button to switch to TF card mode.
Operating Instructions
1. Mode Switching
Short press the M button to cycle through available modes: Bluetooth, TF Card, and FM Radio.
2. Music Playback (Bluetooth/TF Card)
- Play/Pause: Short press the Play/Pause button.
- Next Track: Short press the Next Track button.
- Previous Track: Short press the Previous Track button.
- Volume Up: Long press the Volume Up button.
- Volume Down: Long press the Volume Down button.
3. Alarm Clock Function

- Setting Time: In clock display mode, long press the SET button. The hour digits will flash. Use the Volume Up/Down buttons to adjust the hour. Short press SET to move to minute adjustment, then adjust with Volume Up/Down. Short press SET again to confirm.
- Setting Alarms: After setting the time, short press SET. You will see 'AL1' or a similar indicator. Long press SET to enter alarm setting mode. Adjust the alarm hour and minute using the Volume Up/Down buttons, short pressing SET to confirm each step. Repeat for 'AL2' if your model supports dual alarms.
- Disabling Alarms: Short press the SET button to cycle through alarm settings. When an alarm is displayed, short press the Play/Pause button to toggle it on/off.
4. Colorful LED Lights
The speaker features colorful LED lights. To control or turn off the flashing lights, refer to the specific instructions that may be provided with your model or experiment with short presses of the 'M' or 'SET' buttons, as light control can sometimes be integrated with mode or settings functions.
5. FM Radio

- Switch to FM Radio mode by short pressing the M button.
- Long press the Play/Pause button to automatically scan and save available FM stations.
- Use the Previous/Next Track buttons to switch between saved stations.
- Adjust volume with the Volume Up/Down buttons.
6. Hands-Free Calling
When connected via Bluetooth to your smartphone:
- Answer Call: Short press the Play/Pause button.
- End Call: Short press the Play/Pause button during a call.
- Reject Call: Long press the Play/Pause button when an incoming call rings.
7. Clock Display Behavior

The G90 speaker features built-in dual sensing elements for intelligent recognition of environmental light and shade. When objects move within five meters, the clock display lights up. The screen will turn off automatically after 10 seconds of inactivity to conserve power.
Maintenance
- Cleaning: Wipe the speaker with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Storage: Store the speaker in a cool, dry place when not in use.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the device regularly, even if not in use for extended periods.
Troubleshooting
- Cannot connect via Bluetooth:
- Ensure the speaker is in Bluetooth pairing mode.
- Make sure Bluetooth is enabled on your device and it's within range.
- Forget the device from your phone's Bluetooth list and try pairing again.
- Restart both the speaker and your Bluetooth device.
- Alarm not working or cannot be turned off:
- Ensure the time and alarm settings are correctly configured as per the 'Operating Instructions' section.
- Check if the alarm is enabled (not toggled off).
- Colorful lights flashing unexpectedly:
- Refer to the 'Colorful LED Lights' section for control options. Some light modes might be default or activated by specific actions.
- No sound:
- Check the volume level on both the speaker and your connected device.
- Ensure the correct mode (Bluetooth, TF Card, FM) is selected.
- If using TF card, ensure the audio files are in a supported format (e.g., MP3) and the card is inserted correctly.
- Speaker not charging:
- Ensure the charging cable is securely connected to both the speaker and the power source.
- Try a different USB cable or power adapter.
- Verify the power source is functional.
Specifications
| Feature | Specification |
|---|---|
| Brand | Yalanshi |
| Model | G90 |
| Bluetooth Version | 5.0 |
| Output Power | 5W |
| Usage Time | Approx. 18 hours |
| Battery Capacity | 2000mAh |
| Signal-to-Noise Ratio | >85dB |
| Distortion | <0.5% |
| Input Power (W) | <25 W |
| Sound Mode | Stereo Sound Mode |
| Input/Output | TF Card |
| Category | Speakers |
| Use | Home |
| Voice Control | No |
| Waterproof | Yes |
| Support APP | No |
| Inbox Adaptor | Yes (refers to charging cable, not wall adapter) |
| Intelligent Personal Assistant | None |
| Audio Crossover | Full-Range |
| Number of Loudspeaker Enclosure | 1 |
| Power Source | Battery, USB |
| Channels | 2 (2.0) |
| Battery | Yes |
| Communication | Induction |
| Speaker Type | Portable |
| Cabinet Material | Plastic |
| Origin | Mainland China |
| Dimensions | 8.5cm x 8.5cm |
User Tips
- Motion-Activated Display: The clock display activates with motion within 5 meters and turns off after 10 seconds of inactivity. This is normal behavior to save battery.
- Charging: Always use a reliable USB charger to ensure optimal battery health and prevent damage.
- Product Variations: Be aware that the G90 speaker may come in versions with or without the clock display. Confirm your specific model if this feature is critical to you.
- Language: The device's voice prompts are typically in English. If you encounter prompts in another language, there might be a setting to change it, often by long-pressing the 'M' button or a combination of buttons.
Warranty and Support
For any issues not covered in this manual, or for warranty claims, please contact the seller or your point of purchase. Keep your proof of purchase for warranty service.