King Pentagon : $600/2USB (IN&OUT) . ...
Swiftlet Sounds
King China 2020 : $400/2USB (IN&OUT) . ...
King 168 : $1200/2USB (IN&OUT) . ...
King Platinum 2020 : $1000/2USB (IN&OUT) . ...
King 2K : $800/2USB (IN&OUT) . ...
King 6K : $600/2USB (IN&OUT) . ...
King Ceiling : $600/2USB (IN&OUT) . ...