OO Hm7000-21TXS: Bluetooth & DCC Sound Decoder (21-Pin) is a model railway accessory designed to support, enhance, or detail a layout in OO scale.
Featuring:- Electrical Component: A Bluetooth and DCC sound decoder designed for use with compatible model railway locomotives, enabling advanced control and sound features.
- Scale & Layout Compatibility: Specifically designed for OO scale model railways with a 21-pin interface.
- Integration & Expansion: Installs into locomotives equipped with a 21-pin socket, allowing for wireless Bluetooth control and DCC sound operation.
- Brand: Hornby
- Accessory Category: Electrical
- Compatibility Notes: Compatible with OO scale locomotives featuring a 21-pin socket.
- Included: Bluetooth & DCC sound decoder (21-pin)
Suitable for modellers working in OO scale layouts who want to improve layout functionality and enjoy enhanced control and sound features in their locomotives.
Why this accessory mattersThe OO Hm7000-21TXS decoder brings advanced Bluetooth and DCC sound capabilities to your OO scale locomotives, supporting modern control options and immersive sound experiences. It integrates seamlessly with compatible 21-pin equipped models, expanding operational possibilities and enhancing the enjoyment of your railway layout.
How to use itInstall the decoder into a compatible OO scale locomotive with a 21-pin socket. Once installed, the decoder enables Bluetooth and DCC sound control. Follow the manufacturer’s instructions for installation and setup.

