16G Professional Dictaphone HD Noise Reduction Voice Activated Recorder Lossless HIFI Player Sports Business Meeting|Digital Voice RecorderSpecification:Dimensions:100*37*13mmWeight: 103gColor: BlackMaterial: MetalMemory:Built-in 16GB,Recording format: WAV/MP3Bitrate:1536KbpsNSR:e70dbFrequency:20Hz-20KHzMicrophone: large-scale high sensitivity micWorking time: Continue Recordingaround 14 hours, Playback with speaker around 15 hours.Music format: MP3,WAV,WMA,APE,FLACRecording mode:Voice-activated/ manual control/Line-in recording/Timed recordingVoice-activated sensitivity:adjustableEarphone:3.5mm stereo earphoneBuilt-in battery:built-in lithium polymer batteryListening to songs with headphones can last for 28 hours.Connect: Micro USB2.0/OTGWorking Temperature:-5~45Package Includes1 x Digital Voice Recorder MP31 x USB Cable1 x Earphone1 x User manual