Amazon.co.jp: Razer Raiju Tournament Edition RZ06-02610100-R3A1-A Official Licensed PS4 Controller, Wired/Wireless, New Firmware Compatible Version : Video Games
How To Update Your Razer Raiju's Firmware – LiquidSky.com
Razer Apologise For Raiju Ultimate & TE Wireless Latency Woes; Releases New Firmware
How To Take Apart Your Razer Raiju For Cleaning Or Updating Firmware – LiquidSky.com
Razer issues a firmware update to combat latency in Raiju Series of controllers | KitGuru