1, portable USB DAC + AMP;
 
2, Individual USB interface                : PCM2706             same as most usb dac
 
3, Individual high end DAC converter  : WM8740              same as some hi-end audio products
 
4, Individual high fi amplifier              : TPA6130             same as E5,E1
 
5, Build in Li-ion battery                   : 1100mAh             vs E5 only 200mAh
 
6, Build in 128*64 OLED displayer       : it is the first portable usb dac with OLED displayer in the world, and use to display battery life, volume , working information etc..
 
7, Build in 3 stage bass boost            : So it is more suitable for different request!
 
8, Input/output:  
 
    Mini USB input    x 1   : USB digital audio signal input and power supply
    3.5mm stereo     X1    : line in
    3.5mm stereo     X2    : Headphone out
    Dock                 x1    : include USB interface, line in/out, Ir remote signal, etc..!
 
9, Output power: 150mW X 2
 
10, Playtime:        >80 hours!