Designed by Andrea Branzi for Alessi, the Mama O kettle is a beautiful hob top kettle in 18/20 mirror polished stainless steel. Unlike most other kettles, Mama O features a perfectly symmetrical design complete with melodic whistle. As the kettle boils and steam comes out from the caps, it makes a unique melodic sound. Buy this Alessi kettle for £170 or $350 USD. Previously, cordless electric kettle.