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Trolley Speaker

  • DSP digital audio processing
  • Multiple inputs including Bluetooth, AUX line-in, and TF card
  • Simple console and humanized voice prompts
  • Multiple microphone input forms
  • Indoor and outdoor modes

Horn Tweeter

The Edifier A3-8i trolley speaker has a professional stage-level compression horn tweeter. 

Removable Microphone

The microphone of the A3-8i trolley speaker is removable and you can put it on a speaker stand. The multiple mic input forms are anti-feedback designs.

DSP Digital Audio Processing

The trolley speaker applies DSP digital audio processing and dynamic amplifier power management. 

Outdoor Use

The A3-8i trolley speaker has indoor, outdoor, and accompaniment modes for karaoke. The input choices including Bluetooth, AUX line-in, microphone in, TF card, and USB input.


Power output
  • RMS 8W
DC adapter/power supply
  • 5V, 2A
Signal to noise ratio
  • ≥80dB(A)
Input sensitivity
  • LINE IN input: 250±50mV;
    Bluetooth input: 250±50mFFS
Total harmonic distortion + noise (%)
  • ≤0.5%
  • 6600mAH, 9~12 hours
  • 8-inch mid-bass + true horn tweeter
Adjustment form
  • button adjustment, potentiometer adjustment