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Thanks to TopCashback, shoppers can currently bag two Amazon Echo Pop smart speakers for £20. The deal is available to new TopCashback members, who can get 2.5% cashback and a £15 sign-up bonus ...

A few customer reviews mention the challenge in linking the devices if you purchase more than one, saying: "Bought 2 Echo Pop smart speakers to be able to combine as stereo speakers and home cinema.