Perfect for turning your iPhone 4 into a speakerphone. No external power needed. 13db amplified. Easily keep iPhone stands vertically and horizontally. Functions well in hand free mode. Additional opening reserved for charger.
Bugle loudspeakerUsing the principle of the bugle concentrating the voice and direct the conduction direction in order to reach the effect of increasing the volume it can increase 13 db after use and does not need any supplementary electricity it is absolutely environmental friendly saves energy and reduces emission.
Micro PatternUsing micro pattern the surface can show three-dimensional patterns and would not lose colors.100% Bio-degradableUsing the environmental friendly materials which can be deposed in the nature.
No electricity, Great stocking stuffer, quick ship from USA, higher quality than others listed here.
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