Zoom B1 Four Electric Bass Effects Processor Bass Multi-effects Pedal + SR360 Over-Ear Dynamic Stereo Headphones, XPIX Ultra High Capacity Batteries With Travel Quick Charger & Deluxe Accessory Bundle

B1 FOUR offers 60 built-in effects and up to 5 effects can be used simultaneously, chained together in any order. Looper for recording up to 30 seconds / 64 beats of CD-quality audio; and 68 built-in rhythm patterns that can be used in conjunction with the looper. Autosave function for automatic saving of all patch parameters as you create them, in 50 memory locations for storing user-created patches. Runs on 4 AA batteries, included in this value with an alkaline battery life of 18 hours. 1/4" input jack accepts standard mono bass guitar cable (both active and passive instruments supported). 3.5mm auxiliary input jack for connection of personal music players. Output jack for connection to amp or headphones. USB port for firmware updates, power and connection to Zoom Guitar Lab.