Lot of 4 guitar pedal effects. All are in perfect working order. - Fender engager boost is a real clean boost with no tone coloring and with 3 dedicated eq plus a +20dB volume increase, it has true or buffered bypass option, useful also to push the preamp to soft and nicely saturated overdrive; - Pigtronix philosopher’s tone micro is an excellent compressor sustainer with lot of sustain and low to no noise; - Line6 M5 is a MIDI controllable multi effect unit with great sounds, including: distorsion/overdrive/fuzz, modulation (chorus, flanger, phaser etc), reverbs , delays and filters; - BOSS os-2 is an hybrid overdrive/distortion with precise and unique sound possibilities. Everything will be carefully and securely packed.