Homemade "shorty" gondola sized especially for this speaker
Gondola sized to be as small as possible, but speaker unit might fit inside an O gauge boxcar with a little surgery. (Lining the bottom of the tiny gondola with aluminum foil or metal from a tin can my help with eliminating electrical/magnetic field interference from the track, turnout solenoids, etc., and seems to aid in the Bluetooth reception for the speaker.)
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