SPECIFICATIONSBalanced Out: YesBrand Name: METYOXMMXCertification: CE,FCC,RoHSChoice: yesDimensions (WxHxD): 85mm*36mm*14mmExternal Memory: NoExternal Microphone: YesHigh-concerned chemical: noneModel Number: N28Origin: Mainland ChinaPackage: YesPlayback Formats: ALAC,AIFF,mp3Record Audio Format: MP3Voice Activated Recording: YesWith Speakers: Yes Upgraded Features This upgraded version of the digital voice recorder includes enhanced features for better audio quality and ease of use. High Storage Capacity With8GB-64GB storage, this digital voice recorder allows you to capture extensive audio recordings, perfect for long lectures or meetings. Portable Audio Solution Whether you're attending a lecture, conducting an interview, or taking notes, this portable recorder is your reliable audio companion. Compact Design The mini size of this audio recorder makes it easy to carry around, ideal for students, professionals, and interviewers.Product parametersShell material: plastic+aluminum alloyScreen: LCD overlay screenNumber of folders: 999 filesRecording format and sampling rate: WMA format (32Kbps-1536Kbps)Default recording quality of this device: WAV 512Kbps (recording quality can also be set according to factory requirements)Recording files are saved with time names, accurately recording the time of file generation for easy retrievalFrequency: 24KHzRecording power: 10mASupport: recording, monitoring, voice control, clock, timed recording, voice and music playback, replay, password, low battery saving, shutdown and other functionsAdopting a 0.96 dot matrix LCD screen, supporting multiple languages simultaneously, making operation more convenient.Actual maximum output: L) 9mW(R) 9mW (32Ohm)External input: 3.5pie headphone stereo jack, 3.5pie microphone cable, 3.5pie jackSupports playback in various formats such as MP3, WMA, OGG, APE, FLAC, WAV, AAC-LC, ACELP, etc.USBPC Interface USB1.1/USB2.0 FULL SpeedBuilt in speaker output: 800mWBuilt in speaker: Dynamic 8ohm, 1W diameter: 26mmBuilt in MIC: Omnidirectional capacitor MICS/N (Noise Ratio): 90dBPower supply mode: Rated voltage lithium battery (250MA): 3.4V-4.2VUSB input rated voltage/power: 5V300MAH-5V1000MAHStorage: Embedded flash memory or built-in TF cardOperating temperature:- 1050Weight: About 33.5g(Except Battery)Size: 85mm × 36mm × 14mmBattery life: Approximately 20 hours for recording and 15 hours for headphone playback