810131 Square Mega Bass Speaker, 28mm x 28mm x 11mm (D)

These  8 ohm speakers are great  for boosting the low frequencies in most diesel and “big” steam sounds. Measures 28mm x 28mm Square x 11mm  (D) (1.1" x 1.1" x 0.44" (D)) Frequency  Response 310 – 1k Hz. Peak Power: 2 watts.