Zimo MS500N, Subminiature sound decoder - 14 x 10 x 2.6 mm - audio 1 W.

Functionally identical to MS490, with changed dimensions: 14 x 10 x 2.6 mm instead of 19 x 8.6 x 2.9 mm

Miniature sound decoder with (6-pin pin header directly on the decoder, so no wires)

"MS-Sound" with 1W fully digital sound amplifier for 8 ohm speakers.

"Stay-alive": No special connection, but as with all decoders, an external circuit with a few diodes, a resistor and the energy storage capacitor up to 1000 µF can be connected