Orvis Portable Wooden Speaker [$29]. Whether at work, at play, or on the go, you can enjoy quality sound from any personal device that plays music. Beautifully crafted from solid walnut wood, this diminutive portable speaker incorporates a built-in, rechargeable lithium-ion battery, which provides up to four hours of play time. Recharges via USB or with standard power adapter. 2⅛” square. It has excellent sound quality. And is a cool conversation piece, as it looks like art.