You know how sometimes it’s hard to hear music playing from your iPhone’s speaker? Well, eco-made created eco-amp, which is an environmentally friendly iPhone speaker amplifier made from FSC Certified 100% Post Consumer and Alternative Fiber paper.

The design is based on the same principles as the old gramophone – a single source of sound being amplified by a horn. The cool thing about it is that it’s made as a flat design, which means that it takes up no room when you take it with you and it’s easily assembled on the go. Best of all is that it only costs $7.99 for two.