at the same time, the red light off, blue light on.
Auto-lock protective circuit, will cut off automatically when abnormal cases happened to protect the headset and your hearing.
Charge priority function - This machine will stop working immediately when charge it, meanwhile, red light is on and blue one off. When the battery has been charged completely, please unplug the external source, this machine begin to work again,
Heavy current three channels amplified circuit, effective to lower the output impedance.
High efficiency and low noise power boost, precision separate pressure for dual-supply, satisfy large dynamic signal.
Three levels bass boot, can meet different needs of the sound.
Two levels gain option, suitable for using with different phones.
Two levels working voltage option, satisfy different needs of the trends (hidden design)
Volume control use the closed APLS potentiometer, ensure the low noise and good channel balance.
Customer Reviews of Fiio E11 Mobile Headphone Amplifier