Unlimited tone is a Japanese music group formed in August 2007 and centered on 土居康宏 and Ryohei. Presented as a compact duo, the act has a clear and consistent identity in Japanese music credits, and its official website is http://unlimitedtone.jp/.
With a two-member lineup built around 土居康宏 and Ryohei, Unlimited tone is easy to identify in artist databases and music searches. Its public profile is straightforward: a Japan-based group formed in 2007-08, with stable credits and a concise name that makes it simple to catalog without adding speculation or filler.
