Description: This mini audio recorder has a small size, allowing you to easily carry it when you are out. The digital audio recorder can capture clear sound, the range is up to 20-50 feet. The audio recorder has a 3.5mm audio port, can be connected to a headphone. Mini voice recorder is easy to use, one-button 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: 192Kbps. Battery: Built-in battery. Dimensions: 60x21x10mm. Note There may be slight color distortions due to different computer resolutions. There may be a slight error due to different hand measurements. Package includes: 1x Recorder.(Battery built-in) 1x 3.5mm headphones 1x Micro USB to 3.5mm cable 1x User manual