From Tommee Tippee
Portable design, intelligent sleep-friendly features: Built-in CrySensor technology hears baby's cries and automatically soothes them back to sleep, at home or on-the-go Baby sleep aid with 6 soothing sounds: 3 natural sounds (white noise, rainfall, and heartbeat) and 3 classic lullabies with adjustable volume USB rechargeable: A full charge lasts up to 25 hours Travel-ready for sleep on-the-go: Fabric loop attaches to the handle of your pram, stroller, bag or anywhere that's safe Soft, plush fabric: Mini Ollie and Pip are full of character, and their plush fabric exterior is machine washable