Bone Silicone Portable Horn Stand Amplifier Speaker for iPhones Boxed and Brand New. Free UK Delivery. Fits iPhone 4 4S 3G 3GS The Horn Stand and Speaker designed especially for the iPhone 4 4S and 3GS is a stand and speaker with a difference. Unlike traditional speakers which require batteries, mains power or some wires this cool little eco-friendly gadget works in the same way as a trumpet does by amplifying the noise which is played into it. The funnel like amp channels the audio from the speaker to create a much louder and clearer sound. It can amplify the sound of your music by up to 13 decibels whilst snugly acting as a horizontal or vertical stand. Now you can listen to your music when you are out and about, whether you are rocking it out at a festival or relaxing .
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