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Olympus DM-901 Digital Voice Recorder with Built-in Wi-Fi The Olympus DM-901 is a next-generation digital voice recorder that combines premium sound quality with innovative mobile features, including built-in Wi-Fi for remote control and seamless file sharing. Ideal for seminars, lectures, and content creators who need clear, professional recordings from a distance. Key Features Built-in Wi-Fi: Connect the DM-901 to your smartphone to remotely start and stop recordings via an app, perfect for capturing distant speakers. Visual Index with Smartphone Photos: Link images taken during recording to the audio timeline for easier navigation and management. Zoom Microphone Mode: Focus on distant voices by adjusting microphone direction and recording levels to reduce ambient noise. Long Recording and Battery Life: Up to 850 hours of recording time and 29 hours of battery life on a single charge. Voice Playback: Skips silent parts during playback, enabling faster transcription and efficient meeting minutes creation. Voice Balancer: Automatically balances volume levels of multiple speakers in large rooms for clear audio. Noise Cancellation: Reduces unwanted ambient sounds such as air-conditioners and projector fans for clearer playback. Voice Guidance: Reads menu items aloud for confident operation by touch alone. Enhanced User Interface: Features a high-definition 2" colour LCD screen for easy navigation. Specifications Recording Format Linear PCM, MP3, WMA Internal Memory 4GB External Memory Standard SD (Max. 64GB) LCD Screen 2" Colour LCD Battery Type Li-ion battery LI-50B Battery Life (Recording) 29 hours (PCM 44.1kHz) Battery Life (Playback) 29 hours (EAR) Folders/Messages 5 folders / 600 messages per folder Internal Microphone Frequency Range 70 - 20,000 Hz Recording Mode PCM 48kHz/16bit (40 - 23,000 Hz), 44.1kHz/16bit (40 - 21,000 Hz) WMA Bitrates 128 kbps (Stereo), 64 kbps (Stereo), 32 kbps (Stereo), 32 kbps (Mono), 16 kbps (Mono), 8 kbps (Mono, 40 - 13,000 Hz) MP3 Bitrates 320 kbps (Stereo), 256 kbps (Stereo, 40 - 20,000 Hz), 192 kbps, 128 kbps (40 - 17,000 Hz), 64 kbps (Mono) Maximum Recording Time 850 hours (WMA 8 kbps) Playback Format WMA (5 kbps – 320 kbps), MP3 (8 kbps – 320 kbps) Zoom Microphone Yes Voice Guidance Yes Podcast Mode Yes Body Size 4.5" x 2" x 0.7" Weight 3.7 oz including battery What's in the Box Lithium-ion rechargeable battery AC adaptor Stereo earphones USB cable Olympus Sonority Software CD