Abstract: A short-range communication system. The short-range communication system includes a plurality of wearable units, each of which include a hub having a speaker therein. Each wearable unit has a primary clip extending from the hub for selective attachment to a wearer's ear such that the speaker is directed to an ear canal of the wearer. Each wearable includes has a secondary clip extending outwardly from the hub such that an exterior side of the hub is between the secondary clip and the speaker, an antenna in the secondary clip, a reflector between the secondary clip and the speaker, and a microphone. Each wearable unit is in either a transmit state or a listener state, with a maximum of one said wearable unit being in the transmit state at any point in time. A stationary repeater having a processor and circuitry manipulates original RF signals transmitted by a transmitting wearable unit.

Abstract: A two-way radio system includes multiple units each having a hub, speaker, primary clip, secondary clip, antenna, and microphone. The hub has exterior and interior sides defining a hub cavity therebetween. The speaker is in the hub cavity and has an output directed to a speaker opening on the hub interior side. The primary clip extends from the hub for selective attachment to a wearer's ear such that the speaker opening is directed to the wearer's ear canal. The secondary clip extends outwardly from the hub exterior side such that the hub exterior side is between the secondary clip and the hub interior side. The secondary clip has an antenna support on an interior side of the secondary clip and an antenna cap on an exterior side of the secondary clip. The antenna support and the antenna cap define an antenna cavity, and the antenna is in the antenna cavity.

Abstract: A two-way radio system includes multiple units each having a hub, speaker, primary clip, secondary clip, antenna, and microphone. The hub has exterior and interior sides defining a hub cavity therebetween. The speaker is in the hub cavity and has an output directed to a speaker opening on the hub interior side. The primary clip extends from the hub for selective attachment to a wearer's ear such that the speaker opening is directed to the wearer's ear canal. The secondary clip extends outwardly from the hub exterior side such that the hub exterior side is between the secondary clip and the hub interior side. The secondary clip has an antenna support on an interior side of the secondary clip and an antenna cap on an exterior side of the secondary clip. The antenna support and the antenna cap define an antenna cavity, and the antenna is in the antenna cavity.