RMN4048A RMN4048 - Motorola Temple TransducerRMN4048A RMN4048 Motorola Temple Transducer Bone conduction enables you to receive audio without covering your ears, allowing you to either wear hearing protection in extreme noise environments or keep your ears open to external sounds. This lightweight Temple Transducer with in line push to talk and microphone provides clear audio while providing comfort for extended wear.