The Ilesto 5 Series CRT device is the first DF4 ICD/CRT-D series approved for use in an MRI. Combining a small size with longevity, the Ilesto 5 series is focused on perfecting lifelong protection by using BIOTRONIK-exclusive cutting-edge technology. Using high quality ICD and CRT-D technologies, the small devices provide ICD and CRT-D patients with a device that safe to wear in a magnetic resonance imaging examinations. They reduce the number of inappropriate shocks with ShockReduct by accessing the technology designed by BIOTRONIK Home Monitoring systems. Other features include compact circuitry designs, reduced header size with DF4 connectors and an enhanced battery shape and long lasting technology. BIOTRONIK continues to perfect mechanical designs of the small components for quality and longevity.