Casio Inc. CTK2400 PPK 61-Key Premium Portable Keyboard Package with Samson HP30 Headphones, Stand and Power Supply Keyboard pack includes a pair of Samson HP30 closed-cup headphones, x-style stand, and power supply New, intuitive sampling function with built-in microphone 400 AHL keyboard voices Voice percussion function (samples are integrated into the rhythm) Improved sampling effects. Sampling Function - Maxium Sampling Time 2 Sec. (Long Sampling Mode) 1 (Long Sampling) or 5 (Short Sampling) tones/ Data Back up The screws are attached in the stand