HIFI cable with 2.5mm Trrs Balanced Male compatible with Hifiman Sundara, Arya, Ananda, HE400SE Headphones compatible with Astell&Kern AK240 AK380 AK320 compatible with onkyo DP-X1 compatible with FIIO X5III XDP-300R compatible with iBasso DX200 & Power amplifier / Monitors / Speaker / HIFI equipment with 2.5mm Trrs Balanced and so on players