The Hornby Hobbies R.964 Transformer is a pre-built speed controller designed for model railways in 1:76 scale. Manufactured by Hornby, it is suitable for DC power type and features an analogue control system. This product is specifically designed for Hornby collectors and enthusiasts, offering a reliable and efficient power source for their model railway layouts. Made of plastic and operating at 230V, the Hornby Hobbies R.964 Transformer is a practical and essential component for those looking to enhance their model railway experience.