These ESU-50328 speakers are 13mm round and come in a set of two. They feature an 8-ohm sound chamber, delivering high - quality sound. Part number is 397 - 50328, suitable for all scales.

Using these speakers is easy. First, make sure your device has a compatible audio output. Connect the speakers to your device according to the standard audio connection method. When using, keep them in a dry and cool place to avoid damage. Don't expose them to excessive heat or moisture. For maintenance, you can use a soft, dry cloth to gently wipe the surface of the speakers from time to time to keep them clean. If there are any issues, check the connections first before seeking further help.