The Philips 313911879520 Audio Remote Control is originally supplied with Audio System models: Philips 78620, Philips MC45, Philips MC45/37, Philips MC453799, Philips MC5037, Philips MC503701, Philips MC503799, Philips MC50C37, Philips MC50C3701,

The Philips 313911879520 Audio Remote Control is compatible with Audio System models: Philips MC50C3799