Smartphones have become the main portable device that many people rely on to listen to music on the go. However, just like most smartphone cameras lack the high-end functionality of good standalone cameras, smartphones also tend to not offer the best audio quality either.
Cobble is a battery-free, plug-and-play device for iPhones that combines a headphone amplifier with a digital-to-analog (DAC) converter to significantly improve smartphone music quality. It also works with iPods and iPads, although its compatibility is limited to only those iOS devices with Lightning connectors, from which it draws power.