“Ljud” is a speaker and amplifier for smartphones, made entirely of ceramic material 100% eco-friendly. Has no connections with cables and electronics so it can be easily moved in favorite spaces with ease, becoming an eco-friendly furniture. The sound from the microphone of the phone, which is located inside a sounding board ceramic, exploits the characteristics of the material and is naturally amplified as well as being the most widespread thanks to the harmonic forms of…