5V Power Supply Anytime and AnywhereE50 uses a DC5V power supply, which can be easily accessed almost everywhere. You can power it up by USB port of PC, mobile phone charger or even a power bank.
(Note: The product does not provide a 5V power adapter. ) L50 Will Be The Best Headphone Amplifier for E50L50 and E50 have fully matched design languages and styles, and signals can transmit in balanced by TRS. L50 is suitable for almost all kinds of headphones.