![Amazon.com: BOSS GE-7 Graphic Equalizer Bundle with Instrument Cable, Patch Cable, Picks, and Austin Bazaar Polishing Cloth : Musical Instruments Amazon.com: BOSS GE-7 Graphic Equalizer Bundle with Instrument Cable, Patch Cable, Picks, and Austin Bazaar Polishing Cloth : Musical Instruments](https://m.media-amazon.com/images/I/71jt8L1Q5tS._AC_SL1490_.jpg)
Amazon.com: BOSS GE-7 Graphic Equalizer Bundle with Instrument Cable, Patch Cable, Picks, and Austin Bazaar Polishing Cloth : Musical Instruments
![Bought a used Boss GE-7 and found this mod inside. Pedal doesn't work with a battery but works fine with a power supply. Any idea what the previous owner tried to do? : Bought a used Boss GE-7 and found this mod inside. Pedal doesn't work with a battery but works fine with a power supply. Any idea what the previous owner tried to do? :](https://preview.redd.it/w0g4mcr6agb31.jpg?width=640&crop=smart&auto=webp&s=0b91289f33a6dd0387ebbe72180ede0695fe2d52)
Bought a used Boss GE-7 and found this mod inside. Pedal doesn't work with a battery but works fine with a power supply. Any idea what the previous owner tried to do? :
![Boss GT-1 Multi FX + FS-7 Dual Footswitch, Hobbies & Toys, Music & Media, Music Accessories on Carousell Boss GT-1 Multi FX + FS-7 Dual Footswitch, Hobbies & Toys, Music & Media, Music Accessories on Carousell](https://media.karousell.com/media/photos/products/2019/03/16/boss_gt1_multi_fx__fs7_dual_footswitch_1552695657_ec4a161d.jpg)