The N200 Reference Wireless In-Ear Headphones from AKG are engineered to deliver reference-quality audio from your mobile devices. They support both aptX and AAC technology for high-quality audio reproduction, and have a semi-closed-back design for acoustic dampening. Your audio is wirelessly transmitted from a Bluetooth-compatible mobile device, such as a smartphone or tablet. They are also designed for hands-free calling when paired with a smartphone, thanks to the built-in mic and 3-button, in-line remote. Additional convenience features and a long battery life make the AKG N200 Reference Wireless In-Ear Headphones an ideal solution to your mobile audio needs.