A speaker that is like a "Volume" of a stereo has been born.The internal design was developed from scratch and button operation was eliminated, so that switching it on/off or volume adjustment can be intuitively done by just turning the knob. The design, which is like a metal-work object carved out from aluminum, is delicate and full of dignity.

VOL is not for sale but gift with purchase by KENT (B.A.T) in Asia Pacific Airport for one year.

Hironao Tsuboi was born in Tokyo in 1980 and grew up in Shizuoka prefecture. He graduated from the Department of Environmental Design, Tama Art University, in 2004. In 2007, he founded Hironao Tsuboi Design. Tsuboi has since pioneered a wide range of products centered on product design, from daily use products to furniture and household electrical goods. He has also been involved in the planning of SOLAR PHONE CONCEPTS by au design project. Prominent artworks include Lamp/Lamp, SAKURASAKU glass, LED Watch, and others. Tsuboi has received numerous awards, including the red dot award (Germany), the D&AD Global Award (UK), and the Good Design Award. He was selected as one of forty world emerging designers by I.D. Magazine (US) in 2008. In 2009, Tsuboi was selected D&AD “Creative Faces” (UK).