RMN5116A RMN5116 - Motorola APX Boomless Temple TransducerRMN5116A RMN5116 Motorola APX Boomless Temple Transducer This is a unique secondary audio accessory that works with the APX Display RSMs (HMN4101, HMN4103 and HMN4104) and uses bone conduction to allow users to receive audio without covering the ears. This is the first secondary audio accessory to offer both receive and transmit capabilities. The microphone is embedded in the temple transducer, which eliminates the need for the boom microphone and is