The Optimus USB Flash Drive Recorder has a small size that will make it easy to conceal, and with 512 kbps recording you will be sure you will record with high audio quality. Record low sounds with the super sensitive microphone. This recorder will only record when there is sound over 40dB in the surroundings, saving you time to search audio and recording space. PRODUCT SPECIFICATIONS:. - Recording time: 13-16 hours (depends on the battery life and operating environment). - Storage support recording time: 4GB capacity to support about 18 hours, 8GB capacity to support about 36 hours - Built-in 110MAH rechargeable lithium battery. - Charging time: 2-3 hours - Compact size: 66.5x22x8.5mm - Light Weight: 16 grams. - Record format: WAV. - Sampling rate: 16 KHZ. - Bit rate: 512KBPS. - Voice activated sound sensitivity: 40dB
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