1. Introduction
Thank you for purchasing the Greadio Vintage Bluetooth Speaker GRX7Y. This manual provides detailed instructions for the proper setup, operation, and maintenance of your speaker. Please read this manual thoroughly before use to ensure optimal performance and longevity of the device.
The Greadio GRX7Y is a portable Bluetooth speaker designed with a vintage aesthetic, offering multiple audio playback options including Bluetooth 5.0, TF card, AUX input, and FM radio. It features dual 16W speakers for stereo sound and a built-in microphone for hands-free calling.
2. Product Features
- 16W Dual Speakers: Delivers rich stereo sound with enhanced bass.
- Bluetooth 5.0 Connectivity: Provides a stable wireless connection up to 33 feet (10 meters) with compatible devices.
- Multiple Playback Modes: Supports Bluetooth, TF (Micro SD) card, AUX input, and U-Disk (USB drive) for versatile audio sources.
- Hands-Free Calling: Built-in microphone allows for answering and ending calls directly through the speaker.
- Rechargeable Battery: Integrated 1200mAh battery offers up to 9 hours of playback time on a single charge.
- Portable Design: Compact size and lightweight construction for easy transport.
- FM Radio: Built-in FM tuner for listening to radio stations.
3. Package Contents
- Greadio Vintage Bluetooth Speaker GRX7Y
- Micro USB Charging Cable
- AUX Audio Cable
- User Manual
4. Product Diagram and Controls
Familiarize yourself with the speaker's components and controls:

Image 4.1: Speaker with input options (Bluetooth, TF Card, AUX)
- Volume Knob (Left): Rotate to adjust the speaker's volume.
- Mode/FM Tuning Knob (Right): Rotate to tune FM radio stations. Press to switch between Bluetooth, FM, AUX, and TF/U-Disk modes.
- TF Card Slot: Insert a TF (Micro SD) card for audio playback.
- AUX Input: Connect external audio devices using the provided AUX cable.
- USB Port (U-Disk): Insert a USB drive for audio playback.
- Micro USB Charging Port: Connect the Micro USB cable for charging the speaker.
- Power Switch: Located on the back or side of the unit (not visible in image, typical location).
5. Setup
5.1 Charging the Speaker
Before first use, fully charge the speaker. The speaker has a built-in 1200mAh rechargeable Li-ion battery.
- Connect the Micro USB charging cable to the speaker's Micro USB charging port.
- Connect the other end of the cable to a USB power adapter (not included) or a computer's USB port.
- The charging indicator light will illuminate during charging.
- A full charge typically takes approximately 2 hours. The indicator light will change or turn off once charging is complete.

Image 5.1: Battery information (approx. 5-6 hours play time, 3 hours charging time)
Note: The image indicates approximately 3 hours charging time, while product features state 2 hours. For optimal battery health, avoid overcharging.
5.2 Power On/Off
- To power on, locate the power switch (usually on the back or side) and slide it to the 'ON' position. A power-on sound or indicator light will confirm the device is active.
- To power off, slide the power switch to the 'OFF' position.
6. Operating Instructions
6.1 Bluetooth Pairing
Connect your speaker wirelessly to a Bluetooth-enabled device.
- Ensure the speaker is powered on and in Bluetooth mode. If not, press the Mode/FM Tuning Knob until you hear a Bluetooth pairing prompt or see a blue indicator light flashing.
- Enable Bluetooth on your mobile device (smartphone, tablet, computer).
- Search for available Bluetooth devices. The speaker will appear as "Greadio GRX7Y" or similar.
- Select the speaker from the list to pair. Once successfully paired, you will hear a confirmation sound, and the blue indicator light will become solid.
- The speaker will automatically attempt to reconnect to the last paired device when powered on.
6.2 TF Card Mode
Play audio files directly from a TF (Micro SD) card.
- Insert a TF card (with audio files) into the TF card slot on the speaker.
- Press the Mode/FM Tuning Knob to switch to TF card mode. The speaker will automatically begin playing audio from the card.
- Use the volume knob to adjust playback volume.
6.3 AUX Mode
Connect to external audio sources using the AUX cable.
- Connect one end of the 3.5mm AUX audio cable to the speaker's AUX input port.
- Connect the other end of the AUX cable to the headphone jack or audio output of your external device.
- Press the Mode/FM Tuning Knob to switch to AUX mode.
- Control playback and volume from your external device.
6.4 FM Radio Mode
Listen to FM radio stations.

Image 6.1: Speaker used for FM radio outdoors
- Press the Mode/FM Tuning Knob to switch to FM radio mode.
- Rotate the Mode/FM Tuning Knob to manually scan and tune into available FM radio stations.
- Adjust the volume using the Volume Knob.
6.5 Hands-Free Calling
Use the speaker for phone calls when connected via Bluetooth.
- When a call comes in while connected via Bluetooth, the speaker will ring.
- To answer a call, briefly press the Mode/FM Tuning Knob.
- To end a call, briefly press the Mode/FM Tuning Knob again.
- To reject a call, press and hold the Mode/FM Tuning Knob for approximately 2 seconds.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the speaker's exterior. Do not use abrasive cleaners, alcohol, or solvents.
- Storage: Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the speaker regularly, even if not in use, to maintain battery health.
- Water Resistance: This speaker is not waterproof. Avoid exposure to water or high humidity.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Battery is depleted. | Charge the speaker using the provided Micro USB cable. |
| No sound. | Volume is too low or muted. Incorrect mode selected. | Increase the volume using the Volume Knob. Ensure the correct input mode (Bluetooth, AUX, TF, FM) is selected. |
| Bluetooth device cannot pair. | Speaker is not in pairing mode. Bluetooth is off on your device. Speaker is already paired to another device. | Ensure the speaker is in Bluetooth pairing mode (flashing blue light). Turn on Bluetooth on your device. Disconnect from other devices or restart the speaker. |
| FM radio reception is poor. | Weak signal. Interference. | Relocate the speaker to an area with better reception. Extend any external antenna if available (not explicitly mentioned for this model, but common for retro radios). |
| TF card or U-Disk not playing. | Card/Disk not inserted correctly. Incompatible file format. | Ensure the TF card or U-Disk is fully inserted. Verify that audio files are in a supported format (e.g., MP3). |
9. Specifications
| Feature | Specification |
|---|---|
| Model Number | GRX7Y |
| Product Dimensions | 3 x 2.7 x 2 inches (7.6 x 6.9 x 5.1 cm) |
| Item Weight | 6 ounces (170 grams) |
| Speaker Output Power | 16 Watts (Dual Speakers) |
| Connectivity Technology | Bluetooth 5.0, Auxiliary (3.5mm), USB (U-Disk), TF Card |
| Tuner Technology | FM |
| Power Source | Battery Powered |
| Battery Type | 1 Lithium Ion battery (included) |
| Battery Capacity | 1200mAh |
| Charging Time | Approx. 2 hours |
| Playback Time | Up to 9 hours (at moderate volume) |
10. Warranty and Support
The Greadio Vintage Bluetooth Speaker GRX7Y comes with a 12-month warranty and a 30-day money-back guarantee from the date of purchase.
If you encounter any issues or have questions regarding your product, please contact Greadio customer support. Refer to the contact information provided on the product packaging or the official Greadio website for assistance.



