Which of the following is not a feature of Proclaim Elite?

The feature described as non-rechargeable accurately identifies a characteristic that does not apply to Proclaim Elite. This device is specifically designed for long-term use and typically includes rechargeable components to ensure continuous operation. Thus, a non-rechargeable attribute would be counter to the design and functionality expected from Proclaim Elite.

In contrast to this, being upgradeable suggests that the device can receive enhancements over time, allowing it to keep pace with technological advancements. BurstDR enabled refers to a beneficial feature in the device's operation that allows it to deliver medication in a more efficient manner, improving patient comfort and outcomes. The inclusion of a pre-loaded Abbott iTunes account indicates a user-friendly approach, allowing for easier access to necessary resources or applications right out of the box.

Therefore, non-rechargeable stands out as the only option inconsistent with the overall features and expected functionality of the Proclaim Elite device.