Features:

CNC Aluminium Alloy shell, beautiful shape
Comes with 2.4 inches IPS screen 
Support USB DAC, dual-way bluetooth 4.0 DSD128
Support Hiby link, you can connect X3II player with your phone to controll the player
Built-in 2000Mah rechargeable battery, up to 13 hours music playing
Dual-way USB and Type-C connection for DAC, audio output and data transformation
Support car mode, it would play music as the car gets started and turn off when the car turns off
Support 256G TF card extension, you can enjoy as many songs as you want