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It need 9V DC Power. How many Ampere is the best ?
one more thing, I am in Hong Kong. Can it accept 230v power inputting?
Good news- we have worked with Koss to have 120V & 220V options at check-out!
The dev team at Massdrop did a lot of coding to add the options and retroactively assign your orders based on location.
If you already ordered: Please go to your Transactions page from your Profile drop-down menu and find your Order. Please check it to see if you have the correct voltage for your country and usage.
If you have not ordered yet: You can now order and clearly select a voltage option at check-out!
Please Note: the wall power supply will now work with the voltage that you choose, but you may need to provide your own small plug adapter to fit your country’s outlet.
Thanks, CEE_TEE. Is it UK plug?