The Rii Mini Keyboard is the greatest keyboard for mobile DJ's. It's small, light, easy to use, and has a backlight to help you find songs when it's dark behind the DJ booth.  Currently we use it for the Pioneer MEP7000 system and we are getting another one for the Denon Media Player.  If you don't have one, get one…. here is the link that I got from Amazon….

Rii Mini Wireless Keyboard with Touchpad

Desc from Amazon.

This keyboard is a great accessory for your laptop/home pc, ps3 or wiki gaming systems. Its small compact frame allows you to carry it anywhere and maintain full control of your system. Like having a full size keyboard and mouse in the palm of your hand. Backlight function with a handheld keypad2. 4G wireless receiver integrated design. The world's first Touchpad 90-degree flip design. Innovative design of the Navigation keys. Windows Multimedia Control, Perfect control PC entertainment features. Built-in rechargeable lithium-ion battery. With a true notebook Touchpad and QWERTY full-function mini keyboard
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• 3-in-1 multimedia wireless keyboard (Keyboard, TouchPad, LED light)
• Built-in rechargeable more staying power lithium-ion battery
• 2.4GHz USB wireless receiver; works within 30M
• This is a handheld keyboard with back lit – With 26 PCS dazzling bright LED lights to help when using in poor lighting environments.