The BOSS FZ-5 is a modern pedal built for the modern guitarist, but the sounds you can get from the FZ-5 are pure retro. Looking back at the glorious rock sounds of the ’60s and ’70s, the FZ-5 recreates its vintage fuzz through BOSS state-of-the-art COSM ® technology. Recall the fuzz-filled flavors of classic pedals such as the Maestro FZ-1A, Fuzz Face, and Octavia pedals, and kick ’em into overdrive with the FZ-5’s Boost knob. BOSS' proprietary COSM technology allows guitar players to recreate classic fuzz BOOST control for more aggressive tone. The FZ-5 is the perfect weapon for players wanting to beef up their rigs with classic retro fuzz artillery.BOSS FZ-5 Features:Vintage sounds inspired by famous fuzz pedals of the’60s and ’70sUses advanced COSM technology to recreate classic fuzzBOOST control for more aggressive toneRoad-tough BOSS metal constructionBOSS FZ-5 Specifications:Nominal Input Level: -20 dBuInput Impedance: 1 M ohmNominal Output Level: -20 dBuOutput Impedance: 1 k ohmRecommended Load Impedance: 10 k ohms or greaterControls: Pedal switch, LEVEL knob, FUZZ knob, MODE knobIndicator: CHECK indicator (Serves also as battery check indicator)Connectors: INPUT jack, OUTPUT jack, AC adaptor jack (DC 9 V)Power Supply: DC 9 V, Dry battery 6F22 (9 V) type (carbon), Dry battery 6LR61 (9 V) type (alkaline), AC Adaptor (PSA series: optional)Current Draw: 36 mA (DC 9 V)Expected battery life under continuous use: Carbon: 3hours, Alkaline: 10 hours * These figures will vary depending on the actual conditions of use.Accessories: Owner's Manual, Leaflet (USING THE UNITSAFELY, IMPORTANT NOTES, and Information), MODE sticker, Dry Battery 006P/9V(6LR61)Options: AC Adaptor (PSA series)Dimensions (W x D x H): 2-7/8" x 5-1/8" x 2-3/8" (73x 129 x 59 mm)Weight: 1 lb. (0.4 kg) Boss FZ5 FZ-5.