Product Description
This is the **no remote control version** of XY-WRBT high-performance Bluetooth 5.0 audio receiver decoder. It features ultra-wide 3.7V-24V voltage input, supporting Micro USB charger, 3.7V lithium battery and DC power supply. With built-in power reverse connection protection and low-power on/off function, it is extremely suitable for various simple audio modification projects.
Adopts advanced Bluetooth 5.0 technology for stable connection and lossless audio transmission. Delivers ≥90dB high signal-to-noise ratio and ≤-70dB low distortion, providing clear and pure stereo sound quality. Perfect for upgrading old wired audio systems, connecting to amplifier boards, car audio modification and DIY audio projects.
Technical Specifications
- Model: XY-WRBT (No Remote Control Version)
- Bluetooth Version: 5.0
- Working Voltage: DC 3.7V-24V
- Bluetooth Transmission Distance: Up to 15 meters (line-of-sight, unobstructed)
- Signal-to-Noise Ratio (SNR): ≥90dB
- Total Harmonic Distortion (THD): ≤-70dB
- Audio Output: Dual Channel Stereo
- Audio Interface: 3.5mm AUX output
- Protection Function: Power supply reverse connection protection
- Indicator Light: Blue LED (flashing = pairing mode; solid on = connected; slow flashing = playing)
Core Advantages
- ✅ **Ultra-wide voltage range**: DC 3.7V-24V, compatible with almost all common power sources
- ✅ **Three power supply methods**: Micro USB charger / 3.7V lithium battery / DC power supply
- ✅ **Bluetooth 5.0 technology**: Stable connection, fast transmission and low latency
- ✅ **Lossless audio decoding**: ≥90dB SNR and ≤-70dB distortion, clear and pure sound
- ✅ **Built-in power reverse protection**: Prevents damage from incorrect power polarity
- ✅ **Low-power on/off function**: Short press the contact for 2 seconds to turn on/off, ideal for battery-powered applications
- ✅ **Compact size**: Easy to install in various audio devices and enclosures
- ✅ **Simple operation**: No remote control required, plug and play
Operation Guide
1. **Power on**: Short press the "on/off contact" for 2 seconds. The blue indicator light will flash and enter Bluetooth pairing mode
2. **Pairing**: Enable Bluetooth on your device, search for and connect to "XY-WRBT". You will hear a prompt tone when connection is successful, and the indicator light will stay solid on
3. **Playback**: Play music on your connected device. The indicator light will flash slowly during playback
4. **Power off**: Short press the "on/off contact" for 2 seconds again to turn off the decoder board
⚠️ CRITICAL LITHIUM BATTERY USAGE WARNINGS
1. **Automatic shutdown**: When powered by battery, the decoder board will automatically shut down when battery voltage drops below 3.3V. After recharging, short press the on/off contact for 2 seconds to restart
2. **Low voltage noise**: If you hear "hissing" noise, it indicates low battery voltage. Please charge the battery immediately
3. **Battery protection requirement**: This board **does NOT have built-in lithium battery charging protection circuit**. Always use lithium batteries with their own protection board
4. **Charging method**: If your rechargeable battery supports direct Micro USB charging, you can charge it through the board's Micro USB port
Applicable Scenarios
- Connect to various amplifier boards to add Bluetooth function
- Upgrade old wired speakers and audio systems to wireless
- Car audio modification and upgrade
- DIY Bluetooth audio projects
- Home theater and multimedia audio systems
- Portable audio device modification
Package List
1 × XY-WRBT Bluetooth 5.0 MP3 Lossless Decoder Board (No Remote Control)
Notes
1. Actual Bluetooth transmission distance may be reduced by walls, metal objects or other obstacles
2. For best sound quality, use a shielded 3.5mm audio cable to connect to your amplifier or speaker
3. When not in use for a long time, please turn off the decoder board to save battery power
4. Slight 1-2mm size deviation exists due to manual measurement
5. Item color may have minor differences influenced by different monitor displays and lighting conditions
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