Description: This mini audio recorder has a small size, let you can easily carry it whenever you are. The digital audio recorder can capture clear audio, the range is up to 20-50 feet. The audio recorder features a 3.5mm audio port, can connect with a earphone. The mini voice recorder is easy to use, one-key operation. The rechargeable battery supports 20 hours of continuous recording. The portable recorder saves the audio files in WAV format and allows you to transfer the file to your computer. Specification: Material: Metal. Recording Format: WAV. Storage Memory: 8GB/16GB/32GB. Recording Method: One-key Recording. Recording Time: Continuous Recording for 38 Hours. Standby Time: about 68 Hours. Microphone: Built-in High-definition Microphone. Sampling Rate: 48KHz. Recording Bit Rate: 192 Kbps. Battery: Built-in Battery. Sizes: 60x21x10mm. Note There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. Package included: 1x Recorder.(Battery built-in) 1x 3.5mm Earphone 1x Micro USB to 3.5mm Cable 1x User Manual