Fiio ja11 is a very affordable device that is highly capable ndash supporting a multitude of high resolution formats and featuring a customizable peq, it achieves an excellent sound quality that goes wherever you go. Its an impressively capable decoder that supports up to pcm 384khz 32bit and even dsd128, almost unheard of in its price class. Customizable peq with a built in professional dsp, the ability to set custom peq curves, and even access to peq curves recommended and shared by others, you can have fun dialling in the sound exactly the way you want it. Take calls and record audio with support for microphone input, and ctia omtp inline controls, this device is capable of making calls, recording audio, and even singing karaoke. Some phones may not support microphone input due to operating system limitations. Light and compact while it features a compact and elegant design, inside is a meticulously designed circuit that restores true hifi sound to your 3.5mm jack headphones. Cool metallic texture the aluminium magnesium alloy construction goes through a secondary anodizing process for an uncompromisingly luxurious feel and meticulous craftsmanship. The alloy body doesnt just look good, it is also anti interference. Supports app control connect to the fiio control app to get access to even more functionality, including support for presets, sharing and downloading peq curves, uac version switching, more granular volume adjustment, and more. The ja11 can only be controlled by the android version of the fiio control app comparable with various operating systems and devices as the ja11 is compatible with android ios windows mac computers and phones it means you can easily listen to high fidelity music. High quality wiring inside the cable are high purity oxygen free palladium plated copper wires, which are low impedance and anti interference making them capable of stably transmitting audio signals. The cable itself features a dual layer sheath made of flexible silicone and braided yarn, making it soft yet durable.