Passive Acoustic Amplification Through Sustainable Design
A sustainable bamboo phone case with a built-in collapsible gramophone-style horn that amplifies phone speaker volume by 15-20dB using passive acoustics and whirlpool-shaped internal sound channels. Perfect for outdoor adventures, festivals, or beach days where you need loud, clear audio without draining battery or carrying external speakers.
Join WaitlistYou're at a beach picnic with friends. You pull out your phone, give the case a quick twist, and the flat bamboo back transforms into an elegant gramophone horn. Your music suddenly fills the air—clear, rich, impressively loud—and everyone asks "Wait, THAT'S coming from your PHONE?" No Bluetooth, no battery, just pure acoustic magic.