Casio OEM (Original) AC Wall Power Adapter Home Charger (Chocolate Type) Original (OEM) Casio Travel Charger Part Number CNR711. Using the authentic OEM brand will ensure your phones warranty is never voided! Charge time is approximately two to five hours when the phone is powered off. Use of this official charger will prolong your batteries life compare to others! Provides power to your phone while simultaneously charging your phone's battery. Small and lightweight for convenient portability and storage.