Smilism dad1 Conversat Digital Voice [32GB Expandable] Audio Activated Microphone Noise Reduction 1536kbps Sound Recording, Perfect Lectures & Conversation, Indoor & Outdoor, Mixed Viscose Supreme Sound Quality-- Up to 1536kbps bit rates and professional dynamic noise reduction bring you perfect auditory enjoyment. Dual extra-sensitive microphones and 7 adjustable sensitivity levels allow high-fidelity recording in 50ft. Ships from USA