Wooden iPhone Amplifier Needs No Electricity
Koostik uses special sound chambers which acoustically amplify an iPhone's speaker volume output up to 4 times.
The Koostik presents itself as a natural, non-electronic alternative to conventional iPhone sound docks. This handmade product is completely made out of wood, contains no cables and has specially designed sound chambers that allows it to acoustically amplify an iPhone speaker’s volume output up to 4 times.
Koostik is designed to work with all generations of the iPhone and is available for $90 in a variety of wood surfaces.
Watch a demo below: