1. VOICE ACTIVATED: The mini recorder starts recording when there is sound, stops recording when there is no sound, effectively saving internal space and power, restoring clear original sound. 2. OTG FUNCTION: This voice recorder can be directly connected to your phone via OTG adapter, not limited by your computer, you can organize important files directly on your phone. 3. NOISE REDUCTION: Our voice recorder has a powerful DPS noise reduction chip, which can help you eliminate noise effectively and let you hear the most beautiful original sound. 4. TIME NAMING: Mini MP3 recorder can synchronize with Beijing time and name it by recording time, making it easy to record the file generation time, browse and find files easily. 5. LONG BATTERY LIFE: Built-in high-energy polymer lithium battery and a new generation of power-saving energy system, the recorder is light in volume to achieve long-lasting recording function. Item Type: Mini Recorder Material: ABS Recording Mode: Power On Recording, Power Off Saving Recording Format: WAV Playback Format: MP3, WMA, WAV Built-in Polymer Lithium Battery: 300mAh 1 x Mini Recorder 1 x Headphones 1 x User Manual 1 x Charging Cable