My relative has retired from their electrical appliance business, so these items are being sold off. I don't know the details. I've listed various electrical materials. Price negotiations and discounts for bulk purchases are welcome. Please let me know in the comments. The purchase dates are unknown, so please refrain from purchasing if you are overly concerned about this. Please review the images before considering a purchase. Opened for photography. The following is an AI-generated product description: AIPHONE TCS-MH doorphone set, a combination of white and black, with instruction manual. - Brand: AIPHONE - Model: TCS-MH - Accessories: Instruction manual - Type: Doorphone set - Colors: White/Black Thank you for viewing.