Zazu 3-in-1 Music Box, Wireless Speaker and Nightlight, Zoe The Penguin, Grey

Best decision ever... I bought this when my daughter was 2. She was waking up in the night and I had to turn the music on her monitor. She went back to sleep, but the process of doing that woke me up and made it difficult to go back to sleep.Now, when I hear her at night, I just wait a few minutes for the music from the penguin to lull her back to sleep. Then I go back to sleep.I the batteries to lasted longer or at least if there was an indicator for when the battery was getting low. It only lasts 2 nights all the way through. And if we forget to charge it before the third night, it appears to work when we turn it on at the start I'd the night and then dies half way through. But by that point we're in bed ourselves, so don't know it's stopped working until it's too late.Also, I wish we could adjust the sensitivity ourselves, because when we're awake and moving around we can set the music off ourselves. But when our daughter wakes up, it sometimes takes a minute or two to turn on.