Item Type: Digital Voice RecorderMaterial: ABSColor: BlackSize: Approx. 5.1 x 2.0 x 0.55cm / 2.0 x 0.8 x 0.2inRecording Format: WAVMusic Format: MP3, WMA, WAVBuilt in Polymer Lithium Battery: 100mAh (shipped with battery)Package List1 x Digital Voice Recorder1 x Earphones1 x User Manual1 x Charging Cable1[Voice Activated Recording]: The digital voice recorder will record when there is sound, and will pause automatically when there is no sound, which can effectively save storage space. 2[Versatile Functionality]: The voice activated recorder is not only a voice recorder, but also functions as a USB flash disk and MP3 player, offering the convenience of three devices in one compact package. 3[Noise Reduction]: The portable voice recorder can effectively reduce the noise interference of the sound source during the recording process, ensure the sound sampling rate. 4[Automatic Saving]: The sound recording device will automatically save the file to ensure that the recording data will not be lost when the system detects low power. 5[Simple Operation]: The digital voice recorder has simple operation, press the button to start recording, and press the button again to automatically save and shut down.