Pliant Technologies PMC-900M

The PMC-900M is the standard single-channel beltpack in Pliant's MicroCom 900 MHz wireless intercom line, an economical way to put a small crew on full-duplex comms without a base station. The 900 MHz band trades the global availability of 2.4 GHz for longer reach and better penetration through walls and structure. One channel supports up to five full-duplex talkers plus unlimited listen-only users, and packs talk directly to one another, so a camera team, stage crew, or house-of-worship volunteers can all hear and speak at once. Encrypted frequency-hopping spread-spectrum keeps the link private and stable, with latency held under 35 ms.

The pack is ultra-compact, light, and water-resistant for real-world use, and its internal battery runs up to 10 hours on a shift. It recharges over USB, so a single hub can top off several packs between calls. It ships with a holster, a neck strap, and a USB charging cable.