The Philips SpeechMike Premium LFH3510 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 LFH3510 is ergonomically shaped for a perfect fit in the hand and comes with slide-switch operation (record, stop, play, fast rewind).