This product is made up of a Lithium-ion battery. Will not mix with stable squander stream. Spent batteries must be disposed of by an experienced recycler or harmful materials handler for every community regulations. Gi?i m?i (bao g?m t?t c? gi?i nào có s? thay ??i, c?p nh?t m?i ho?c ?i?u ch?nh) trong m?t kho?n th?i gian nh?t ??nh tr??c khi ?i?