1. [Voice-Activated Recording]: This digital voice recorder starts recording when sound is detected and automatically pauses when silent, efficiently saving storage space. 2. [Versatile Functionality]: More than just a voice recorder, it also functions as a USB drive and MP3 player, offering the convenience of three devices in one compact package. 3. [Noise Reduction]: The portable voice recorder effectively minimizes noise interference from the sound source during recording, ensuring high-quality audio capture. 4. [Automatic Saving]: The audio recording device automatically saves files, preventing data loss when low power is detected. 5. [Easy to Use]: The digital voice recorder is simple to operate; press the button to start recording and press it again to automatically save and power off. Item Type: Digital Voice Recorder Material: ABS Color: Black Size: Approx. 5.1 x 2.0 x 0.55cm / 2.0 x 0.8 x 0.2in Recording Format: WAV Music Format: MP3, WMA, WAV Built-in Polymer Lithium Battery: 100mAh (Comes with battery) Includes: 1 x Digital Voice Recorder, 1 x Headphones, 1 x User Manual, 1 x Charging Cable