Eco-friendly, wire-free: Ljud Smartphone Amplifier/Speaker by Davide Conti is a 100% ceramic, entirely acoustic amplifier that should work with any smartphone that has the speaker at the bottom (and that includes iPhones). Conti commutes between his studio in Chiavari, Italy, and Ningbo, China, where he is Project Manager at the Italian Association for Industrial Design (ADI) China Design Center…