The Otto Engineering C101199-50 is a 50-pack of clear, coiled acoustic tubes which attach securely to Quick Disconnect adapters. Each one features a clear eartip and a discreet behind-the-ear loop design.
These earphones are 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.