I could hear my baby's heartbeat the day before I turned 13 weeks. I was just so excited. Only things I don't like are that I can't record on my mac because I don't want to risk putting those small cd's into my computer because the cd drive doesn't come out like most windows computers. When I use the heartbeat monitor the gel gets all over the volume area. I don't like that it can't be loud speaker too so that my husband and I can listen together, by the time I find it and give him the ear phones I've sometimes moved slightly and lost the heartbeat but I don't know I've don't it because I can't hear. One more thing I don't like is that there isn't a display showing beats per min and it's very difficult to count when baby's heartbeat fades in and out or they move slightly and I have to look again. If the original price was really £50 I would have expected these things to be on it. So I'm just glad I only payed £20 for it. Or I probably would have given this item 1 star.