Motorola PMMN4046

IMPRES Speaker Mic w/Vol, IP57 The remote speaker microphone boasts a revolutionary IMPRES technology, wire porting technology and waterproofing capability. The IP57 submersible RSM is tested at 1 meter for 30 minutes which is ideal for outdoor radio communication in wet conditions. The volume control feature enables the user to adjust the radio volume without having to touch the radio.