Features: 1. Large Capacity: Equipped with 8G memory storage capacity and about 96 hours recording capacity ( When the memory is full, the previous content will be overwritten ), you can use it every . 2. Voice Activated Recording: In voice activated recording mode, the recorder starts recording when it detects a sound within range, so that you don't miss any important sound. 3. One-click Recording: One-click to start normal recording / voice activated recording / power off, which is quick and easy to operate. 4. Digital Noise Reduction Technology: According to the type of noise in different environments, it can automatically adjust the received sound waves, filter and reduce the environmental noise. 5. USB DataPlug: No data cable, no transfer interface. It can connect the computer through USB 2.0 plug to transfer data quickly. 6. Automatically Save When Power Off: When the system detects that the power is insufficient, the recorder will automatically save the file in advance, and then automatically shut down to ensure that the recorded data is not lost. Note: 1. This machine must be charged with 5V voltage. If use 9V fast, the machine may be burned. 2. To use the device in USB 2.0 high speed mode, you need to connect it to a computer which supports USB 2.0 card or board. 3. Due to manual measurement, the size may be slightly different. Thank you for your understanding. 4. Due to different light conditions and different monitors, item color displayed in photos may be showing slightly different from real object. Specifications: Color: Black Shell Material: ABS Memory Capacity: 8GB Recording Capacity: Approx. 96 Hours ( subject to actual use ) Continuous Recording: Approx. 20 Hours ( subject to actual use ) Battery: 3.7V, 120mAh Lithium Battery Sampling Rate: 48KHz Recorder Format: WAV Recording Bit Rate: 192/256KBPS Record Method: Power on recording, power off saving Connection Type: USB Plug ( USB 2.0 ) Item Size: 7*2*0.8cm / 2.76*0.79*0.31in Net Weight: 15g / 0.53oz Packing Size: 13.5*10.5*1.5cm / 5.31*4.13*0.59in Packing Weight: 30g / 1.06oz Package List: 1 * Voice Recorder ( Built-in non removable memory card ) 1 * Manual ( English )