The present invention relates to compounds of the formula . A passive base cup is made of foam and has a reflective layer on a majority of the outer surface thereof, or made of plastic, with an outer reflective layer, and optionally a foam layer. The assembly is then encapsulated with resin and shielded by metallization. The magnetometer detects a direction of a gesture relative to the intelligent device. The computer system can include a condenser and pump to operate all its modular cooling systems, removing the condensing function from the individual modules. The light assembly is fixed in the recess, comprising a third case and a light source disposed in the third case.