They had offered us a baby monitor overpriced who passed away after 2 years of loyal service. So we sought a cheaper device for our 2nd child. We opted for this model: very good range, no crackling in the background (that limit was suspect at first we were not accustomed to so much discretion), its very clear pilot controllable remotely.
Caveats: we can not cut the distance to music (or so I have not found how).