The black Surveillance Kit from Otto Engineering is designed for two-way radio communications to provide remote monitoring and optional remote control of the push-to-talk function of the radio. It includes a lightweight earphone, a flexible, transparent acoustic tube, a quick disconnect earphone adapter with clip, and a clear rubber eartip. It can be used in low to moderate noise environments for discreet transmissions that are unnoticed by others.
The black Dynamic Earphone from Otto Engineering is a single quick-disconnect earphone. Snap the earphone onto your existing earphone cable.
The Otto Engineering C101199 is a clear, coiled acoustic tube which attaches securely to Quick Disconnect adapters. It features a clear eartip and a discreet behind-the-ear loop design.
This earphone is compatible with surveillance kits (professional models) such as the One Wire Earphone kit, the Two Wire Palm Microphone kit, and the Three Wire Mini-Lapel Mic kit.