∙ 구매 후 금액을 충전하여 사용할 수 있다.  ∙ 충전소 : 편의점, 역사 내 충전기  ∙ (대만) 잔액이 부족하면 사용 할 수 없어 충전 필수.
∙ After purchase, you can use it by charging money. ∙ Charging station: convenience stores, charging machines inside stations ∙ (Taiwan) If the balance is insufficient, it cannot be used, so charging is essential.
∙ After purchase, you can recharge the amount and use it. ∙ Charging stations: Convenience stores, chargers in stations ∙ (Taiwan) If the balance is insufficient, it cannot be used, so charging is required.