BOSS FS-1-WL Wireless foot switch with three footswitches. Compatible with Bluetooth, allowing for wireless patch changes with compatible effects units and amplifiers. Confirmed to work with BOSS KATANA-GO. ・Batteries will be included for testing purposes, but their remaining life is not guaranteed. Please replace them with new ones for actual use. ・Price negotiations are not accepted. Comments regarding price negotiations may not be answered. ・The buyer will be given priority, even if someone is asking questions or negotiating. Please purchase directly. No prior confirmation is needed at the time of purchase.