FiiO M23 / M23 SS Portable High-Resolution Music Player closed-back You can tweak the sound

You can tweak the sound in the DJ booth just the way you like

offering unmatched audio clarity and bass response

Duo Universal In-Ear Monitors

Comfortable sound isolating sleeves block up to 37 dB of ambient noise

​The HD 620S was built to last with a metal-reinforced headband and earcup housings

FiiO M23 / M23 SS Portable High-Resolution Music Player closed-back You can tweak the soundGet the core with AKM flagship DAC combo Like the Q15 and K9 AKM, the M23 utilizes the flagship AKM DAC combo the AK4191EQ+AK4499EX. It is a new design that totally separates the digital and analog portions and also features the DWA ROUTING Technology to further improve the signal to noise ratio. These technologies allow for a purer audio background and higher resolution audio resulting in a relaxed yet natural sound. Double Type C ports, patented