Hercules DJ DJ Control Air + S Series Large jog wheels for a better DJing experience - Size similar to jog wheels on DJ CD players Add fun to your mix with the AIR control - The contactless sensor lets you control the mix from above, without even touching the device, with 1-foot of range Velocity pads to express your creativity - 4 velocity pads on each deck let you liven up your mixes; Instantly trigger sample playback or hot cues with one touch Ergonomic design - Comfortable size: 17.7" wide for plenty of space between controls while performing; Soft rubber cladding on rotary caps and transport buttons for easier handling: fingers won't slip Versatile microphone input - High audio quality for balanced and unbalanced dynamic microphones, and there are two operating modes to integrate vocals into your mix