Shares in audio tech specialist Toumaz Ltd (LON:TMZ) was top London riser, adding 22%, as it unveiled its first design win for its Minuet speaker toolkit.
The group's consumer audio business was chosen by Harman International Industries, the world's leading provider of wireless home audio devices to power its new Google Cast-enabled wireless home speaker - the JBL Playlist.
The Toumaz platform allows manufacturers to develop wireless speakers incorporating Google Cast quickly and cost-effectively.
Google Cast enables wireless speakers to stream over 150 online music services, such as Spotify and Pandora through Wi-Fi (wireless).
Anthony Sethill, the chief executive of Frontier Silicon, Toumaz's audio firm, said: "Just over a year ago we announced we were working with Google on its Cast technology.
"Google Cast promises to be a game changer for the smart audio sector and we are delighted that our first product announcement is with the world's largest speaker company, Harman.
"This is the first of several design wins to be announced in the coming months and an indication of the exciting potential of our high growth Smart Audio division."
Shares in Toumaz gained over 22% to stand at 2.75p.