Product Q3 basic information： 1. Support 192K/24B decoded. Native DSD. 2. Input interface: USB in, Lighting in, Coaxial in, Optical in, Line in 3. Bluetooth wireless transmission, support APT-X. 4. Output interface: Support 2.5mm Balanced, and standard 3.5mm headphones. 5. Mfi certification product and support iPhone/iPad/iPod lightning plug in. 6. About the size: 120×66×12mm ----------------------- We hope the design exquisite workmanship, suitable for binding. We prepared four ID, please comment, which is your favorite, if you have a better suggestion also please put it out, thank you.