Material: plastic/plastic function: electric bubble packaging: OPP bag ability training: emotional ability training: visual ability training: intelligence development ability training: crawling ability training: hands-on brain ability training: grasping ability training: sensory ability training: hand-eye coordination ability training: other ability training ability training: interactive toy ability training: auditory ability training: cultivation of parent-child communication ability: interest cultivation color: SF898-8 pink angel (battery-owned) color: SF898-8 blue angel (battery-owned) color: SF898-8 pink angel + battery (5 battery 4 tablets) color: SF898-8 blue angel + battery (5 battery 4 tablets) applicable age: children (4-6 years old)