Features:

G1 FOUR offers over 60 built-in effects
13 amp models for simulating classic rigs
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 with seamless start and end times
ZOOM Guitar Lab software for creating, editing and managing effects and patches
68 built-in rhythm patterns which can be used in conjunction with the Looper
50 memory locations for storing user-created patches
Auto Save function for automatic saving of all patch parameters
Onboard chromatic tuner supports all standard guitar tunings, including open and drop tunings
Input jack accepts standard mono guitar cable (both active and passive instruments supported)
Auxiliary input jack for connection of personal music players
Output jack for connection to amp or headphones
Runs on 4 AA batteries, with alkaline battery life of 18 hours
USB port for firmware updates, power and connection to ZOOM Guitar Lab