Tiny, but powerful speaker including two resonator boxes. Great choice for small model trains in scales N, 009/H0e and OO/H0. The bigger the speaker the better, but if you have only little space, then this is a great choice. I also sell 9 x 16 mm and 11 x 15 mm speakers in other listings. See video with real life example here: https://www.youtube.com/watch?v=G6SXulirYdM Size speaker: 8 mm x 12 mm x 2.73 mm (0.472" L x 0.315" W 0.107" H) Size larger resonator box 1: 8 mm x 12 mm x 6 mm (0.472" L x 0.315" W 0.24" H) Size small resonator box 2: 8 mm x 12 mm x 3 mm (0.472" L x 0.315" W 0.12" H) Efficiency dBA: 63 Frequency range: 100Hz ~ 10kHz Power - Rated: 250mW Power - Max: 500mW You get TWO resonator boxes and choose one which fits your model the best. The chosen resonator box has to be glued on the speaker side, not on the rear, metal side for maximum result. This can be done with double sided tape or epoxy glue. |