1Without bisphenol A, good toughness, corrosion resistance and high temperature resistance, even when heated, will not destroy the molecular structure and produce harmful substances. 2Adopting ABS environmental protection material, withstand pressure, round corners, not hurt the baby. 34 playing modes, infrared induction design, providing much fun for children. 4Quality surround sound effect, creating a spatial stereo field for kids. 5Multifunctions: 4 animal songs, 8 classical songs, 4 dynamic rhythms.