Sony ICD-PX370 PX Series Digital Voice Recorder 4GB w/Built-in USB SD Card PX370 Open box, comes as pictured, feel free to ask any question you might have. The Sony ICD-PX370 PX Series Digital Voice Recorder is a versatile and user-friendly device designed for recording meetings, lectures, and other important events. It features an onboard monaural microphone and supports mono MP3 recording with bit rates ranging from 48 kbps to 192 kbps, allowing for up to 159 hours of recording time in LP Mono mode or 39.5 hours in stereo at 192 kbps. The recorder includes 4 GB of internal flash memory and supports microSD card expansion up to 32 GB, providing ample storage for your audio files. It also features a built-in USB connector for easy file transfer to computers without the need for additional cables. Key features of the Sony ICD-PX370 include: One-Click Recording: Quickly start and stop recordings with a single button press. Voice Activated Recording: Automatically starts recording when sound is detected, conserving battery life and storage. Battery Life: Offers up to 62 hours of recording time at 44.1 kHz and 48 kbps MP3, and up to 55 hours at 44.1 kHz and 192 kbps MP3. Playback: Supports MP3 playback with bit rates from 48 kbps to 192 kbps, and includes a built-in speaker for quick audio checks. Connectivity: Equipped with a 3.5 mm auxiliary input and headphone output for connecting external microphones and headphones. Search Functions: Includes calendar search, easy search, and track mark features to help you quickly locate specific recordings. The Sony ICD-PX370 is a reliable and efficient tool for capturing and managing audio content, making it an excellent choice for students, professionals, and anyone who needs to record and review important information.