Is the original power cord for your Fisher FBX1260 or FBX440 Bluetooth speaker lost or broken? Don't worry – this Kircuit adapter is a perfect replacement. It's a brand new, high-quality power supply that converts regular wall outlet power (100V-240V AC) into the DC power your speaker needs to run or charge its battery. It's been tested to work seamlessly with those specific Fisher Party Jam models, and it might also be compatible with other devices that use a similar plug (like some Gear4 or PG548 models – but always double-check your device's voltage/amp requirements first!). It has built-in safety features for over-charge protection. It's a reliable, affordable fix to get your music pumping again, whether at home or as a backup travel charger.