Brand new, unused item. This product costs around 3700 yen on Amazon. Detachable battery Includes a magnetic ring holder for smartphones Compatible with Android/iOS/PC/Switch Macro Button: One-click for ultimate control. In games, complex operations often discourage players. The unique macro button design of the Black Shark wireless game controller allows players to easily achieve ultimate control with a single click. Through the macro button, players can customize complex operations such as combos and skills, making the gaming experience smoother and easier to control in various games. Vibration Feedback: Experience immersion. Vibration feedback in the game provides players with a more immersive experience, allowing them to feel the reality of the game. The Silver Wolf Blade wireless game controller supports vibration function and can adjust the vibration intensity in real-time according to the game scene. This allows players to experience powerful vibration feedback in the game. Detachable Battery: No worries about running out of battery. To allow players to fully immerse themselves in the game, the Silver Wolf Blade wireless game controller adopts a detachable battery design, supports a 1020mAh battery, and can be used continuously for up to 10 hours. The controller also supports key assignments for keyboards, catering to various player scenarios.