Make a real splash with this magical Barbie mermaid doll whose tail lights up when she is dipped into water! Switch her to on mode by pushing the button in her necklace; doll goes into sleep mode automatically after inactivity for a predefined time to preserve battery. The colourful light show is a WOW touch to a rainbow-coloured look from head to fin. The Barbie Rainbow Lights Mermaid Doll is suitable for children aged 3 years and over. Requires 3 x LR44 Button Cell batteries (included).