Feature: 1. POWERFUL MAGNETS: Voice activated recording device has a built in powerful magnet that can be directly attached to a metal cover without installation and is very strong. Delicate and compact, long recording and high power. 2. TWO RECORDING MODES: Voice activated recording and normal recording in two modes, pause when there is no sound, thus saving storage space. Turn on the voice activation function to record when there is sound to improve efficiency. 3. AUTOMATIC RECORDING: Portable voice recorder is easy to use, it will automatically record when the recorder detects sounds around it and pause when there is no sound to avoid losing important information. 4. BUILT IN TIME CHIP: Mini voice activated recorder has a built in time chip to record files with the recording time synchronized with beijing time, making it easy to organize files and improve work efficiency. 5. POWER MANAGEMENT SYSTEM: Digital voice recorder has a built in 1750MAH lithium polymer battery and power management system, which can reduce recording power consumption about 12 days and 12 nights of continuous recording. Specification: Item Type: Digital Voice Recorder Material: ABS Recording Format: WAV Playback Format: MP3, WMA, WAV Built In Polymer Lithium Battery:1750mAh Product Size: Approx. 13x53x73mm / 0.5x2.1x2.9in . Package List: 1 x Digital Voice Recorder1 x Earphone1 x Instruction Manual1 x Charging Cable Note: Please allow some error due to manual measurement.