Small Size, Big Wireless Potential The 5V Ultra-Mini Bluetooth Audio Receiver Module is a breakthrough for hobbyists and professionals looking to add wireless audio to the smallest of spaces. This SMD-style board is significantly smaller than standard Bluetooth modules, making it the perfect choice for custom-built Bluetooth earphones, portable micro-speakers, and retrofitting vintage audio gear. At Robogears, we recommend this module for its minimal footprint and low power consumption.
Stable Bluetooth 5.0 Audio Streaming Equipped with an advanced Bluetooth 5.0 chipset, this module provides a stable, high-fidelity wireless connection with minimal latency. It supports a wide range of devices, including smartphones, tablets, and PCs. Once powered, the onboard LED flashes to indicate it's in pairing mode, and it automatically reconnects to the last used device for a seamless user experience.
Designed for Seamless Integration The module is designed for ease of installation with clearly labeled solder pads for power (VCC/GND) and audio output (L/R/G). It can be powered directly by a 3.7V Lithium battery or a standard 5V power supply, making it highly versatile for both battery-powered portable projects and wired stationary systems. Its surface-mount (SMD) design allows it to lie flat against a PCB or be easily glued inside a small enclosure.
Key Highlights:
Ultra-Miniature Design: Fits into almost any enclosure or project box.
Stereo Sound Output: Provides crisp Left and Right audio channels.
Low Voltage Compatible: Works perfectly with Li-ion batteries or 5V USB power.
Auto-Reconnect Feature: Pairs instantly with known devices upon power-up.
Built-in Antenna: High-sensitivity PCB antenna ensures a stable 10m+ range.
Bluetooth Version: 5.0 (Backwards compatible)
Input Voltage: 3.7V to 5V DC
Maximum Current: 20mA (Idle), 30mA (Working)
Signal to Noise Ratio (SNR): 90dB
THD+N: -70dB
Crosstalk: -86dB
Frequency Response: 20Hz – 20kHz
Audio Output Port: Solder Pads (L, R, AGND)
Installation Tip: To prevent audio noise, ensure that the module's power ground (GND) and audio ground (AGND) are connected to a common ground point. For high-power amplifier setups, we suggest adding a 100uF capacitor across the VCC and GND pins to filter out any supply noise.
