Recording Format: WAV
Battery Recording Time: 50 hours
Memory: 3GB
Battery Playing Time: 30 Hours
Battery:20mAh lithium battery
Noise-signal ratio: 80db
USB Interfce: USB 2.0 High speed
Recording Sample Rate: 48KHZ
Microphone: Built-in double magnetic microphone
Size: 0.23*1.2*2'
Net Weight: 21 Grams