Product Description
XH-A252 upgraded Bluetooth 5.0 audio receiver module converts traditional wired audio devices into wireless Bluetooth-enabled systems effortlessly. It supports **full-format lossless audio decoding** including APE/FLAC/WAV/WMA/MP3, delivering high-quality sound with stable transmission.
With ultra-compact size and only 5.9g weight, it is extremely easy to hide and install. Powered by standard Micro USB DC5V, it is plug-and-play without any drivers required. Perfect for upgrading old power amplifiers, wired speakers, car AUX systems and various audio equipment.
Technical Specifications
- Model: XH-A252
- Bluetooth Version: 5.0
- Power Supply: DC 5V (Micro USB interface)
- Transmission Distance: Up to 20 meters (open unobstructed environment)
- Supported Audio Formats: APE / FLAC / WAV / WMA / MP3 (all mainstream formats)
- Audio Output: 3.5mm AUX stereo jack
- Bluetooth Device Name: **Hazy Audio**
- PCB Size: 35×35×8mm
- Mounting Hole Spacing: 29mm (hole diameter: 3mm)
- Net Weight: Only 5.9g
LED Indicator Status
- **High frequency flashing**: Waiting for Bluetooth pairing
- **Steady on**: Bluetooth connected successfully
- **Low frequency flashing**: Music playing
Core Advantages
✅ **Bluetooth 5.0 technology**: Stronger signal, faster transmission and more stable connection without lag or dropouts
✅ **Full-format lossless decoding**: Supports APE/FLAC/WAV/WMA/MP3, compatible with all mainstream music formats
✅ **Long transmission distance**: Up to 20 meters in open environment (actual distance depends on phone Bluetooth performance)
✅ **Ultra compact and lightweight**: Only 35×35mm and 5.9g, easy to hide in any audio equipment
✅ **Plug and play**: No drivers required, simple wiring and easy to use
✅ **Standard Micro USB power**: Compatible with all phone chargers, power banks and USB ports
✅ **Universal compatibility**: Works with all Bluetooth-enabled smartphones, tablets and computers
✅ **Low power consumption**: Energy-saving and stable long-term operation
Simple Operation Guide
1. Connect the module to DC5V power supply via Micro USB cable. The blue LED will flash at high frequency.
2. Connect the 3.5mm AUX output to your power amplifier or speaker.
3. Turn on Bluetooth on your mobile phone or other device.
4. Search for and connect to Bluetooth device named **"Hazy Audio"**.
5. When the blue LED stays steady on, the connection is successful.
6. Play music on your device, the LED will flash at low frequency during playback.
Application Scenarios
- Upgrade old wired power amplifiers to Bluetooth wireless
- Add Bluetooth function to car AUX audio systems
- Convert traditional wired speakers to Bluetooth speakers
- Desktop computer wireless audio output
- Home theater audio system wireless upgrade
- Portable audio device modification
- Various audio DIY projects
Usage Notes
1. Use only DC5V power supply, do not exceed 5V to avoid damaging the module
2. Actual Bluetooth transmission distance may be reduced by walls, metal objects or other obstacles
3. Keep the module away from strong electromagnetic interference sources for optimal performance
4. Use high-quality shielded 3.5mm audio cable for best sound quality
5. Ensure the module is placed in a well-ventilated area
Package List
1 × XH-A252 Bluetooth 5.0 Lossless Audio Receiver Module