Which of the following is a feature of the K22 device?

The K22 device is known for its off-line transaction recording capability. This feature allows users to conduct transactions even when they are not connected to the network. It records the details of the transaction locally, and once a connection is re-established, the system can sync the data. This functionality is crucial for maintaining service levels in situations where network connectivity might be intermittent or unavailable, ensuring that operations can continue smoothly.

While high-speed transaction processing is important for efficiency, the K22's standout feature is its ability to handle transactions without a live connection. Integrated cash drawers might be part of the overall setup, and mobile application compatibility can provide additional user convenience, but they are not defining characteristics specific to the K22 itself. The focus on offline functionality underscores its robustness in various operational scenarios.