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Both FHSS and DECT keep your video off the internet, but they behave differently in a crowded house. DECT holds a dedicated channel and gives the cleanest audio; FHSS hops between frequencies and is more forgiving of interference. This page explains which one suits your walls, your neighbours and the number of devices already fighting for airtime in your home.
The full ranking for this page is being finalised. Every product listed here is checked against manufacturer specifications before it is ranked, and this page is updated as models change.