HIFIMAN SUNDARA Over-Ear Full-Size Planar Magnetic Headphones

Is this the revise Version?

Yes you get the latest version from our store.

Is the HiFiMAN Sundara a new item, with a certificate of authenticity, or is it reconditioned or refurbished?

All products from HiFiGO are 100% new, including Hifiman sundara.  but HiFiman products are very limited , should pre-order first, thanks