AKAI Professional MPC Key 37 Standalone Production Workstation USB Microphones Sensor Type: Optical Heart Rate Sensor Type: Optical Heart Rate Sensor Accelerometer Altimeter Ambient Light Sensor Brand Name: Fitbit Touchscreen: Yes Bluetooth: Yes Wireless LAN: Yes GPS: Yes Product Family: Versa 2 Display & Graphics Touchscreen: Yes General Information Product Type: Smart Watch Manufacturer Part Number: FB507RGPK FRCJK FB507GYSR FRCJK FB507BKBK FRCJK Manufacturer Website Address: http: www Patented cartridge design features two ultra thin diaphragms (one active and one passive) and a groundbreaking inverted airflow system Introducing the AKAI Professional MPC Key 37 a standalone keyboard workstation that has everything you need to produce music out of the box Device registration required