Hercules DJ Controller Air + Large jog wheels for a better DJing experience - They are sized similar to jog wheels on DJ CD players: 5.9/15 cm diameter at the base and 5.1/13 cm diameter on top. Mechanical pressure detection for intuitive scratching. 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 ft of range. The DJ CONTROL AIR+ converts the distance to your hand into a MIDI command. Velocity pads to express your creativity - 4 velocity pads on each deck let you liven up your mixes - You can instantly trigger sample playback or hot cues with one touch and the harder the pads are tapped, the louder the volume of the samples played. Ergonomic design for enjoyable mixing sessions - Comfortable size: 17.7/45 cm wide for plenty of space between controls while performing. The soft rubber cladding on the rotary caps and transport buttons make for easier handling. High audio quality microphone input for balanced and unbalanced dynamic microphones with two operating modes to integrate vocals into your mix