Am going away to stay in a hotel. Have a 300m range listening device (dd aged 2.8 is coming with us). There is a beach bar 50 yds away from the hotel. If we checked that the monitor worked and left a radio on in the room on low vol. to ensure that we hadn't lost connection, could we go down to beach bar in the evening or is that really bad? She almost never wakes up in the evening.