Risuona Steve is a passive speaker for smartphones, made entirely of wood without any electrical apparatus.
It works as the gramophone or megaphone, trough the principle of the acoustic trumpet.
It amplifies the sounds of a smartphone with a guadagno of 6-8 DB.
It is really easy to use, place the smartphone in correspondence of the inlet of the acoustic duct and the sound comes out amplified.
This model is also suitable for every models of iPhone.
Each model of Risuona is customizable with your logo.
Customizable whit graphics or logo.