The Ion iDM02 is a version of the Alesis SR-16 with 1/8" drum trigger inputs added. Ion is a separate brand owned by the same parent company as Alesis.
Number of Pads: 12
User Demo Videos
Ion iDM02 Manual
Items for Sale on Reverb
Alesis ION iDM02 24 BIT Drum Machine with Trigger Inputs ($65)
Ion Hi Hat Pedal for iDM02 iED01 iED002 iED004 ($59.99)