This product contains a Lithium-ion battery. Don't mix with good waste stream. Spent batteries really should be disposed of by an experienced recycler or hazardous components handler for each local rules.V?i t? l? th?ng c?c k? t??i sáng, m?i l?n tham gia, ng??i ch?i có c? h?i tr? thành ng??i chi?n th?ng, b?t ch?p vi?c h? là ng??i m?i hay là m?