Product Name Aiphone Expansion Unit QEH-1CDA Indoor Master Unit 中古 (Used) Works Well Invoice Available Category Security & Safety > Intercoms > Indoor Units/Expansion Units Condition No noticeable scratches or stains (Although there is some minor wear and tear, the appearance is clean and there are no operational problems) Shipping Included in the price (seller pays) Rakuraku Mercari Delivery Ships from Chiba Prefecture within 1-2 days Product Description For sale is an Aiphone expansion indoor master unit QEH-1C (model number QEH-1C). You can connect it to your existing Aiphone system and use it as an additional extension unit in a room or office. This model is also compatible with invoices. ▼ About the Condition There are no noticeable scratches or stains on the exterior, and the keys and display work normally. Although there is some light wear and tear as a used item, it can be used without any problems in practice. The only included item is the main unit (no instruction manual, box, or included cables). ▼ Recommended for: ・Those who want to expand their existing Aiphone system ・Those who want another indoor unit in their office or home ・Those looking for reliable Aiphone products even if they are used ・Businesses that require invoice support ▼ Please note ・It will not work on its own. Please connect it to your existing Aiphone master unit system. ・Please confirm the connection method and compatible systems yourself, or consult with a contractor. ・Please understand that this is a used item, and we cannot guarantee its operation. No claims or returns are accepted. ▼ About Shipping We will ship quickly via "Rakuraku Mercari Delivery". Delivery is expected within 1-2 days from Chiba Prefecture. Please check the photos carefully, and feel free to contact us with any questions before the transaction.