Sumvision Rio Mini wireless keyboard with built-in track ball

alaTest has collected and analyzed 62 user reviews of Sumvision Rio Mini wireless keyboard with built-in track ball from Amazon.co.uk. The average user rating for this product is 4.5/5, compared to an average user rating of 4.1/5 for other products in the same category on Amazon.co.uk. Opinions about the design and price are overall positive. The durability and size are also mentioned favorably, but some have doubts about the reliability.