Introduction
Thank you for purchasing the BLOW BT500 Portable Bluetooth Speaker. This manual provides essential information for the safe and efficient use of your device. Please read it thoroughly before operation and keep it for future reference.
The BT500 is a compact wireless speaker featuring Bluetooth connectivity, a powerful rechargeable battery, volume control, FM radio, a microSD card slot, and a USB input. It is designed for versatile audio playback on the go.
Package Contents
- BLOW BT500 Bluetooth Speaker
- Micro USB Charging Cable
- 3.5mm Mini Jack Audio Cable
- Carrying Strap

Image: The BLOW BT500 speaker shown with its included accessories: a micro USB charging cable, a 3.5mm mini jack audio cable, and a carrying strap. The speaker itself is black with a mesh grille and control buttons on top.
Product Overview

Image: A front-angled view of the BLOW BT500 portable Bluetooth speaker. It is cylindrical, black, with a textured mesh exterior and a red 'B' logo on the front. A black carrying strap is attached.

Image: A side view of the BLOW BT500 speaker, highlighting the control panel on the top surface. Buttons for Bluetooth, power, mode, volume up/next track, and volume down/previous track are visible.

Image: The rear view of the BLOW BT500 speaker, showing the protected port area. This area typically houses the charging port, USB input, and microSD card slot, covered by a rubber flap for protection.
Setup
Charging the Speaker
Before first use, fully charge the speaker. Connect the supplied micro USB cable to the speaker's charging port and the other end to a USB power source (e.g., computer USB port, USB wall adapter). The charging time is approximately 5-6 hours.
The charging indicator light will typically show red during charging and turn off or change color when fully charged.
Attaching the Carrying Strap
Attach the included carrying strap to the designated loops on either end of the speaker for easy portability.
Operating Instructions
Power On/Off
- To power on, press and hold the Power button until you hear an audible prompt.
- To power off, press and hold the Power button again until the speaker shuts down.
Bluetooth Mode
Upon powering on, the speaker will automatically enter Bluetooth pairing mode, indicated by a flashing LED light. If not, press the Mode (M) button to switch to Bluetooth mode.
- Enable Bluetooth on your smartphone, tablet, or other device.
- Search for available Bluetooth devices.
- Select "BT500" from the list.
- Once paired, the speaker will confirm with an audible prompt, and the LED light will become solid.
- You can now play audio from your connected device.
The Bluetooth range is approximately 10 meters (33 feet).
FM Radio Mode
Press the Mode (M) button to switch to FM radio mode.
- To auto-scan and save stations, press and hold the Play/Pause button.
- To switch between saved stations, use the Previous Track (Volume Down) and Next Track (Volume Up) buttons.
USB/MicroSD Card Playback
Insert a USB flash drive or a microSD card (up to 32GB) into the respective slot. The speaker will automatically switch to the corresponding mode and begin playing audio files.
- Use the Play/Pause button to pause or resume playback.
- Press the Previous Track (Volume Down) or Next Track (Volume Up) buttons to skip tracks.
AUX Mode
Connect an external audio device (e.g., MP3 player, laptop) to the speaker's 3.5mm AUX input using the supplied mini jack cable. The speaker will automatically switch to AUX mode.
Control playback from your connected device.
Volume Control
- Press and hold the Volume Up button to increase volume.
- Press and hold the Volume Down button to decrease volume.
Maintenance
- Keep the speaker dry. Do not expose it to water or excessive moisture.
- Clean the speaker with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Avoid extreme temperatures.
- Do not disassemble the speaker. This will void the warranty and may cause damage.
- Store in a cool, dry place when not in use for extended periods.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not turn on. | Battery is depleted. | Charge the speaker fully (5-6 hours). |
| No sound from speaker. | Volume is too low; Device not connected; Incorrect mode. | Increase speaker and device volume; Ensure proper Bluetooth pairing or AUX connection; Press Mode (M) button to select correct input. |
| Bluetooth pairing fails. | Speaker not in pairing mode; Device too far; Interference. | Ensure speaker is in Bluetooth mode (flashing LED); Move device closer to speaker (within 10m); Turn off other Bluetooth devices. |
| FM radio reception is poor. | Weak signal; Environmental interference. | Relocate the speaker to an area with better reception; The charging cable can sometimes act as an antenna, try connecting it. |
Specifications
| Feature | Specification |
|---|---|
| Bluetooth Version | V4.2 |
| Bluetooth Range | Up to 10m (33ft) |
| Speaker Output | 2 x 6W |
| Frequency Range | 100Hz – 20kHz |
| FM Radio Frequency | 87.5 MHz – 108 MHz |
| Memory Card Slot | MicroSD, max 32GB |
| Input Ports | USB, 3.5mm Jack (AUX) |
| Charging Current | DC 5V, 500mAh |
| Built-in Battery | 2000mAh |
| Charging Time | 5-6 hours |
| Play Time | Up to 7 hours |
| Dimensions (L x W x H) | 220 x 98.7 x 94.8 mm (8.66 x 3.89 x 3.73 inches) |
| Weight | 750g (1.65 lbs) |
| Compatible Devices | Smartphone, tablet, laptop, desktop computer, MP3 player |
| Material | Plastic |
Warranty and Support
BLOW products are known for their quality and reliability. For warranty information and technical support, please refer to the warranty card included with your purchase or visit the official BLOW website. Keep your proof of purchase for warranty claims.
For further assistance, you may contact the retailer where you purchased the product.





