1. Turn on the recording mode, just use your finger to gently turn the switch to NO 2. Built-in high-sensitivity recording chip, high-definition recording at a distance of 80 meters 3. Intelligent voice control recording, recording when there is sound (more than 30 decibels), and listening when there is no sound (or less than 30 decibels) 4. Connect the OTG adapter to play and manage files on the phone 5. Battery: Built-in 100mAh polymer lithium battery 6. Charging time: about 1 hour 7. Sampling rate: 48KHz 8. Recording format: WAV 9. Product size: 13.5x1.2cm
