An entirely wearable electrical connector for power/data connectivity. The principal element of a modular network is the wearable electrical connector, which is integrated into a personal area network with USB compatibility. Several wearable connector embodiments are disclosed. The first, an O-ring based version, was subsequently replaced by a more mature second version, which is based on anisotropic pressure sensitive conductive elastomer. Both are snap-style, low-profile, 360.degree.-moving, round, blind operable plug-and-play, reconfigurable wearable connectors with power/data daisy-lattice-style connectivity. A third embodiment comprises a non-conductive elastomeric environmental seal. A fourth embodiment utilizes a self-acting, automatic shutter-type environmental seal. A fifth embodiment comprises a smaller version that resembles a conventional snap fastener commonly used on clothing. The inventive technology will benefit the military and public safety personnel such as police, fire, EMT and other services that require special protective clothing integrated with multiple electronic devices. Other applications include special clothing for the disabled, prisoners, the mentally ill and children. A non-wearable embodiment is used to provide evidence of tampering of a container.