Welcome to our store! 1. This remote control is made of ABS material, which is not easy to wear out and is durable for daily use. 2. This remote control is very simple and easy to use, just install the battery and you can use it directly. 3. The maximum remote control distance is 10 m (393.7 inches (Different models have different distances). 4. This remote control is an ideal replacement choice when your old one is lost or damaged. 5. This replacement remote control is perfectly applicable for Sony system audio RM-AMU063. Item Type: Remote Control Material: ABS Maximum Remote Control Distance: Approx. 10m/32.8ft Applicable Model: For Sony System Audio RM-AMU063 Remote Control Battery: 2 x AA batteries (not included) 1 x Remote Control Satisfaction Guarantee: Customers are our top priority. If you find any problem with the product, please contact the seller immediately. We strive to provide satisfactory customer service.