Motorola HMN4104 [suggested replacement non-display PMMN4135A]

The Motorola HMN4104 is a rugged IMPRES microphone with a display, channel knob, volume control, two programmable buttons and an orange emergency button. Its 8-character display mimics the top display to show zone and channel information at a glance. It is designed with a large speaker that delivers audio that is clearer, more intelligible and up 50% louder than XTS-series RSMs.

Meets rugged specifications for submersibility and includes a rugged, submersible audio jack from Motorola.