Features:Compact size& back clip Only 10*2.1*0.8cm/ 3.93*0.83*0.31inch(L*W*H) size, compact and lightweight, convenient to carry out, not occupying much installation space.Noise reduction Adopting three omnidirectional microphone noise reduction and DSP noise reduction technology, the recorder can extend the recording distance up to 100 meters, providing 1536k high resolution sound.Voice controlling & timer function The intelligent voice controlling function makes the voice recorder can automatically start to record the voice when it finds voice, and stop when there is no sound. Besides, it supports the timer function, bringing user much convenience.Repeat& fast forward function The recorder supports repeating and fast forward function, convenient for listening again the recorded file. Each sound file will have a time stamp automatically.Metal bodyMaidenly made of high quality zinc alloy material, hard, wear resistant and durable, owning long using life span and fashionable appearance.Transcription function The recorder supports to record for Weichat or for QQ sound in the record by the microphone slot.Scope of application Widely suitable for class, interview, conference, contract signing and so on.Specification:Type: digital voice recorderQuantity: 1pcMaterial: zinc alloyColor: blackInterface: mini USB 2.0Format: WAM, mp3Battery: built-in 500mahSound quality: 32-1536kbpsSampling Rate: 44khzRecording time: 20hMemory: 16gMicrophone: omnidirectional microphoneData encryption: supportingOne button operation: supportingTurn off memory function: supportingSize: 10*2.1*0.8cm/ 3.93*0.83*0.31inch(L*W*H)Net weight: 60g/ 2.12ozPackage:1* digital voice recorder1* earphone1* manual1* USB cable1* package box