The 2.4GHz Wireless platform is a cost-effective and low-power solution optimized for wireless transmission of high-quality digital audio.

The BG311 Module includes a robust built-in wireless audio transmission protocol and Built-in audio ADC/DAC. Utilizing numerous coexistence mechanisms allows the BG311 to avoid interfering with, or being interfered by other 2.4 GHz radio systems.

BG311 Wireless Audio Module Spec

  • Wireless high-quality digital audio
  • Wireless point-to-point audio link
  • Wireless (USB) headphones / headsets
  • Wireless (USB) loudspeakers
  • Wireless speaker systems
  • Wireless Microphone


  • S-Power offers high quality FM wireless audio transmitter and receiver with audio amplifier and digital volume control in semi assembled PCBA form that enable very low cost wireless audio system design and imple¬mentation with RF implementation and test hassle.

    Wireless Audio (49MHz)

    Part No Current Frequency Max. Input range Operati ng Current Frequency Modulation RF output Power Operating Distance (750mm antenna) Audio Frequency Response S/N @1mV RF input with 1KHz modulated signal at ±20KHz modulation and 1.4Vpp audio output @4ohm Package
    BG1W49Z4902 / BG1W49Z02TS (Stereo Option)49.86MHz ±5KHz5 ~ 6V40mA±23KHz @ 1KHz 2Vpp8 ~ 11dBm (9dBm typ.)30 meters typ. 100 meter with CM1W49Z4902TE60 ~ 3.0KHz (-3dB)45dB Min.46 x 51mm

    Part NoCurrent FrequencyMax. Input rangeOperating CurrentSensitivityRF output PowerOperating Distance (750mm antenna)Audio Frequency ResponseS/N @1mV RF input with 1KHz modulated signal at ±20KHz modulation and 1.4Vpp audio output @4ohmAudio
    BG1W49Z498849.86MHz ±5KHz5 ~ 6V40mA (No load) 650mA Min. @ 3W audio output6uV8 ~ 11dBm (9dBm typ.)30 meters typ. 100 meter with CM1W49Z4902TE60 ~ 3.0KHz (-3dB)45dB Min.61 x 59mm

    Part NoDigital volumeAudio Output PowerAudio mutingPackage
    BG1W49Z4988 (Stereo Option)16 steps1.5 / 3W @4ohm BG1W49Z4988R-1/361 x 59mm