Compliance is the most critical factor in the toy industry. For the US market, products must comply with ASTM F963 and CPSIA (Lead and Phthalates limits). For the EU market, EN71 (Parts 1, 2, and 3) and CE Marking are mandatory. Additionally, since these are electronic, they must meet RoHS (Restriction of Hazardous Substances) and WEEE directives to ensure no toxic chemicals are used in the circuitry. Always request a Children's Product Certificate (CPC) or an EC Declaration of Conformity from the supplier before placing a bulk order.