Professional Voice Activated Digital Audio Recorder 16GB 8GB USB Pen Non-Stop 100hr Recording PCM 1536Kbps External Microphone 7 Level Noise Cancellation Sensitive Voice Activated Recording, Detect voice automatically, save space and bettery. 7 Level Noise cancetion, Select the noise reduction level according to the occasion Super long recording time, continues record 50hrs with once fully charge. Easy to cope with the week's work Lossless music player, enjoy music any time. support flac ape mp3 wav ect. foromat music   Multi-Functions, Timestamp, Password protection, Timer rcording, Record split. Timestamp: recordings named by date and time,can easily manage the recordings,<br> Password protection: 6 digits password, when start it or connect to computer, it will request you input password.<br> Timer Recording: set a date a time, it will auto start record at the set time.<br> A Key recording, easily operate, push up to start recording, push down to save recording, also you can connect to a external microphone to do close up recording Monitor function, Recording while listening, Monitor what you recorded content all the time Portable size, Multiple independent function buttons for easy operation Product Dimensions: 103mm*35mm*13mm<br> Body Weight: 35g   <br>