[Helps to grow ].Scientific research has shown that proper jumping day helps to grow [Interest Guidance].Multi-function touch-up boosting artifact, interest guidance, children grow happily [Intelligent shutdown].A of modes to stimulate children's desire to challenge, intelligent shutdown [Material Environmental Protection].Environmentally friendly ABS material, and more , the material is environmentally friendly, and more durable [High Quality].100% new, [Glow]Unique luminous design makes children more interested [voice]A single group of voices is counted 30 , the number of is reasonable and appropriate, not too much, not too little, 10 of voice encouragement in the whole process, 3 seconds, to stimulate children's interest. Product name: Children's height touch device Power supply: 2 X AA batteries (not included) Colour:light blue Material:ABS Package Contents: 1 set x Height Touch Device(batteries not included) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.