Digital Voice Recorder HD Recording Voice Mini-Audio Recorder for Lecture Interview Meeting Voice Activated MP3 Player Specification: Material: metal Dimensions: 77mm×21mm×13mm Net weight: 52g Recording format: WAV Languages: 22 major languages ​​supported Recording speed: 1536Kbps Maximum recording time: 45 hours Frequency: 20～20Khz Signal-to-noise ratio: ≥80DB Memory Card: Support Recording Mode: Voice Command / Manual Control Music format: MP3, WMA, WAV Interface type: micro USB2.0 Power supply: built-in lithium polymer battery Features: 【One-click recording and voice activation】Small and easy to carry, one-click recording, one-click saving. 【Automatic Speech Recognition】With automatic speech recognition function, the recorder will automatically start recording after recognizing the sound. It is in standby mode when there is no sound to reduce recording capacity and power consumption. 【Data protection password】Set the data protection password. When you turn on the recorder, you must enter the correct password every time you turn it on to protect privacy and security. 【64 GB large memory digital recorder】Maximum support 128GBTF card (not included). MP3 Player: Support MP3, WMA, WAV format. 【Multifunctional Recorder】Various scenes, such as conferences, business lectures, class notes, song practice, voice-activated recording, monitor recording, timing recording. Package Includes: 1 x Digital Voice Recorder 1 x USB cable 1 x Manual Note: 1.Please allow slight size deviations due to manual measurement,measuring methods and tools. 2.The picture may not reflect the actual color of the item because of different photographing light and display monitor.Thanks for your understanding. 【One-click recording and voice activation】Small and easy to carry, one-click recording, one-click saving. 【Automatic Speech Recognition】With automatic speech recognition function, the recorder will automatically start recording after recognizing the sound. It is in standby mode when there is no sound to reduce recording capacity and power consumption. 【Data protection password】Set the data protection password. When you turn on the recorder, you must enter the correct password every time you turn it on to protect privacy and security. 【64 GB large memory digital recorder】Maximum support 128GBTF card (not included). MP3 Player: Support MP3, WMA, WAV format. 【Multifunctional Recorder】Various scenes, such as conferences, business lectures, class notes, song practice, voice-activated recording, monitor recording, timing recording.