The Philips SpeechMike Premium LFH3500 Dictation Microphone features free floating studio quality precision microphone, a microphone grille with optimised structure, built-in noise-reduction pop filter, antimicrobial surface or the motion sensor. The SpeechMike Premium is equipped with an extra-large speaker, enabling it to not only record but also play back recordings in clear and crisp quality. The LFH3500 is ergonomically shaped for a perfect fit in the hand and comes with push button operation. Decoupled, studio quality microphone for precise recording Microphone grille with optimised structure for crystal clear sound Integrated pop filter for perfect recording quality Large speaker area for premium playback Hygienic surface for easy disinfection Integrated motion sensor mutes microphone when not in use Push buttons for comfortable operation Trackball for integrated mouse function Freely configurable function keys for a personalised workflow Smart, backwards compatible firmware fo