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. Reviewers are impressed by the design and price. The durability and size are also appreciated, whereas many are critical about the reliability.