Concrete Amplifier (L)

CONCRETE AMPLIFIER (L) - 220X220X55mm - $1280 HKD for one Design Concept: - the amplifier can turn iPhone/iPad to a speakerphone and function well in hand-free mode - the amplifier makes use of simple science to amplify sound without any external power - the amplifier increases volume by concentrating the sound and directing the conduction direction - additional opening is reserved for iphone/ iPad charger https://www.youtube.com/watch?v=TmkloVWdA4M https://c2.staticflickr.com/4/3674/33121626005_2575e28f9f_b_d.jpg Note: All Goods of Concrete sells 100% hand-made concrete products. Surface bubbles and different concrete textures are unique for each product. MADE IN HONG KONG | HANDMADE DESIGN