One-click sound recording is easy to operate: Digital voice recorder, one-key operation, simple and convenient Acoustic noise reduction chip: With the 8-core DSP active noise reduction chip, the recording is clearer Intelligent voice-activated recording: Automatically record when there is sound to save storage space as much as possible, and also save time to play back and filter useless clips Smart timestamps file management: Built-in time chip, after synchronizing time, the recording file is named by time, and the file management is clear at a glance Automatic saving when powered off: When the system detects that the battery is low, the voice recorder will automatically save the file in advance before shutting down to ensure that the recording data is not lost MP3 playback function: MP3 music playback, listen to pure sound quality, support a variety of lossless format playback U disk storage function: Built-in memory storage, not only can store recording files, but also can be used as a mobile U disk to store and copy various files easily Powerful battery life: The use of 420mAh environmental protection lithium battery + upgrade and optimization of energy-saving system, effectively improve the use time Smart recording, save in stages: After segmented recording is enabled, it will be saved as a recording file according to the set recording duration. For example: 30/60/90/120/300 minutes Recording lossless sampling PCM-1536kbps: The pursuit of high-quality sound quality, lossless restoration of live sound quality, using PCM recording method, bitrate up to 1536kbps Scene usage: It is suitable for classroom learning recording, communication practice recording, leisure and entertainment, etc. Specifications: Product Model: M29 charging time: about 3h Product memory: 4GB Body Material: Zinc alloy Product weight: 43.9g Battery capacity: 420mAh Product Size: 53*53*13mm Recording time: about 95h Support format: MP3, OGG, APE, FLAC, WAV, AAC-LC Playing time: about 60h