Hands free communications badges are being used in hospitals to speed medical response to patients where seconds matter.  Staff members wear a “Star Trek” like badge that is voice activated to perform certain functions.  They can place and receive telephone calls and also broadcast messages and alerts. This could have a huge impact on public safety operations once the voice recognition can be perfected to work in a noisy field environment.

The badge is a wearable lightweight, voice-controlled device utilizing intuitive commands to enable hands-free, instant two-way or one-to-many conversations. The badge runs on a communications platform, which enables intelligent call routing based on name, role, availability and shift-changes, ensuring calls and critical information instantly reach the right care team member in the right place.

https://www.vocera.com/product/vocera-communication-badge?