Voltage: 14.8v

Shipping method:
To US, Canada and Russia: USPS
To any other countries: International Express mail (EMS, UPS, DHL or Fedex)

Warranty Policy:
30 days refund: shipping cost is not refundable.
1 year replacement.
The cost to ship a product back to us for repair, replacement, refund, exchange or upgrade is the responsibility of the consumer. The cost to return the product to the consumer is the responsibility of Head Direct/HiFiman