Features:CNC aluminum alloy; black; ultra-thin design; high concealment.One-button recording; no button design; multi-function operation with wire control; with delete function; play LED light indication.ADPCM recording 192Kbit; optional voice-activated recording 50DB; automatic split recording.Recording for 60 hours in a row; standby for 60 days; 8GB capacity (storage recording for 90 hours).Support MP3; WMA; WAV playback; support fast forward and backward playback.With a timestamp; the name of the recording file is named after the time. Specification: Model: M2 Colour: Black Recording Format: WAV Recording Bit Rate: 192kbps Continuous Recording: 60 hours Power Supply: 3.7V 100mAh Size: Approx. 6.8*4*0.5cm / &nbsp;2.7*1.6*0.2inch Weigth: Approx. 65g Package list: 1 x Recording Pen 1 x Cable 1 x Adapter 1 x Earphone 1 x Manual&nbsp;<img data-srcid="-" src="https://image.doba.com/dgd1-tOVbmaRGBoqd/m2-portable-mini-voice-recorder-pen-voice-control-hd-recording-pen-cnc-aluminum-alloy-built-in-8gb.jpg" alt="dropship M2 Portable Mini Voice Recorder Pen Voice Control HD Recording Pen CNC Aluminum Alloy built in 8GB" /><img data-srcid="-" src="https://image.doba.com/dgd1-fBDSzTHnAcbN/m2-portable-mini-voice-recorder-pen-voice-control-hd-recording-pen-cnc-aluminum-alloy-built-in-8gb.jpg" alt="dropship M2 Portable Mini Voice Recorder Pen Voice Control HD Recording Pen CNC Aluminum Alloy built in 8GB" /><img data-srcid="-" src="https://image.doba.com/dgd1-tabYzZnLgcqS/m2-portable-mini-voice-recorder-pen-voice-control-hd-recording-pen-cnc-aluminum-alloy-built-in-8gb.jpg" alt="dropship M2 Portable Mini Voice Recorder Pen Voice Control HD Recording Pen CNC Aluminum Alloy built in 8GB" /><img data-srcid="-" src="https://image.doba.com/dgd1-aLVchTnmWobS/m2-portable-mini-voice-recorder-pen-voice-control-hd-recording-pen-cnc-aluminum-alloy-built-in-8gb.jpg" alt="dropship M2 Portable Mini Voice Recorder Pen Voice Control HD Recording Pen CNC Aluminum Alloy built in 8GB" /><img data-srcid="-" src="https://image.doba.com/dgd1-TmvZhfRnBJDN/m2-portable-mini-voice-recorder-pen-voice-control-hd-recording-pen-cnc-aluminum-alloy-built-in-8gb.jpg" alt="dropship M2 Portable Mini Voice Recorder Pen Voice Control HD Recording Pen CNC Aluminum Alloy built in 8GB" />