We strive for a prompt response. A small discount is possible! To prevent problems, we do not offer holds or reservations! Everything is on a first-come, first-served basis!! If you are dissatisfied with the product you receive, or if it doesn't work, we will accept returns and refunds! Please let us know before leaving a review. We generally ship via Yu-Packet Post. Please consult with us if you have other shipping preferences. We have confirmed that all buttons emit infrared light. Button response is good ◎ For radio wave types, only power-on is confirmed, or operation is unconfirmed. Please understand. We have cleaned the item, but if you are concerned, please purchase with the understanding that you may need to clean it yourself. Batteries are not included. For usage instructions and compatible model numbers, please contact the manufacturer. Please be sure to check the condition in the photos and understand before purchasing. If you have any questions, please ask in the comments section.