Communicator Badge[]
A combadge sitting on an activated Engineering-division Navy dress uniform.
The standard communications system of Starfleet crew since the late 2290s, the communicator badge provides a realtime voice/data link over subspace with the user's assigned post. Calls can also be made badge-to-badge in the absence of a spacecraft or station nearby, as the little devices carry enough power to operate themselves and their attached uniform indefinitely. Computing power inside each device is sufficient to establish and maintain a mesh network, handle call routing, and process voice input.
Wrist Light[]
Wristlight on a left-handed technician
The wristlight is the logical evolution of Starfleet's previous portable luminance sources. A very bright LED light source with power provided from the user's wrist tricorder, it can throw a one-meter circle of daylight wherever the user points. Understandably a useful thing to have for any away team or repair crew.
Tactical Harness[]
An SFMC tactical vest.
Marines traditionally equip one of these over their uniform for away team missions. The tactical harness contains pockets for magazines and batteries, as well as a Type-2 quick-draw holster and a small shield generator.