These attractive Barbie intercom phones were designed so children could talk and listen at the same time without having to press any additional buttons. With ringing tone effect, additional sounds and light up feature. Helps children learn numbers and interact with others. A great way to keep in touch with parents and friends! Works room to room. Requires 2 x 6LR61 batteries. Age from 3 years. Warning: Not suitable for children under three years.