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Extend your av setup’s capabilities with these tools

Hejsang HDMI Audio Extractor

For those tricky devices that don’t offer audio outputs of their own. Supports 4K signals, 3D, and even ARC extraction for perfect replication of high-end Dolby audio streams. £30, amazon.co.uk

Neet HDMI Splitter

Happy to handle up to 4K signals and the latest HDCP 2.2 copy protection, Neet’s, er, neat splitter is the perfect choice if you’re sending a single source to multiple devices – a TV and a projector, for example. £35, neetcables.com

Logitech Harmony Elite

Combine all your remotes into one with this Alexa-compatible universal system, complete with a network-connected IR blaster that means you can control your devices via the excellent mobile app or, indeed, via an Amazon Echo. Just don’t lose it down the sofa. £205, logitech.com