FiiO

The K19 does not have a battery, and is powered by an external power supply. You can purchase an OTG adapter cable to connect to an Android phone, an Apple ...

Windows computer 1. Install the FiiO USB DAC driver on the computer: Click Notice: a. This version of the driver can only be used in Win10 and Win11 syst...

K19 can be upgraded with firmware, of which, both XMOS and MCU firmware need to be upgraded via PC; Bluetooth firmware can be upgraded via FiiO Control APP....

How to use Bluetooth function? 1. After power on, switches to Bluetooth working mode using menu knob 2. Open the Bluetooth settings on the mobile phone, f...

1. The use of coaxial and optical input is similar. After powering up, switches to optical/coaxial working mode using menu knob. 2. Input setting: connect ...

How to use the HDMI IN mode? The HDMI IN mode of the K19 supports audio and video signal reception, as well as transmitting the received video signals to t...