The MVP is built to withstand the harsh environment in a train.

Neither a train that is built in the 1950:ies or a modern train are easy places for any modern electronic equipment.

We need to protect not only for the vibrations but also for electric spikes and dips.

Modern EMC regulations are also important parts of the equation.

The applicable parts of:

Shock	ETSI EN 300 019-2-5
Vibration	ETSI EN 300 019-2-5
EMC	EN 50121-3-2:2007 class B
	EN 301 489-1 V1.8.1

Working temperature between -10 – 55 °C

The front panel is fully waterproof with rubber sealing and plastic membrane on the speaker.