ABS Material- ABS material production and appearance matte finish process, builtin highend professional audio recording and audio processing scheme.MP3 Format- Recording in MP3 format with . Condenser microphone recording, reproducing the original sound recording.Intelligent Noise Reduction- Intelligent noise reduction can give effective filter the noise part of the sound source. Large capacity battery, meet your recording time needs.HD Breaking Screen- Using high definity code breaking screen display, easy to operate at night, clear visibility. Supports MP3 WAV audio files in various formats. Recording low power automatic shutdown save function, so that the file no longer lost.Drivefree U Disk Function- USB2.0 universal interface, high speed data transmission. Intelligent voice control recording can save storage space effectively and reduce blank and useless files. Support to record the function, a a function, easy to operate.