【Durable Metal Construction】Crafted with a combination of metal and titanium alloy, this device boasts exceptional impact resistance for long-lasting durability. 【Intelligent Noise Reduction】Features AGC (Automatic Gain Control) functionality to automatically adjust noise sources, ensuring clear audio capture. 【Professional Recording Chip】Equipped with the ATJ3315D professional recording chip for high-quality audio recording and playback. 【Versatile Functionality】Serves as a voice recorder, MP3 player, and USB flash drive, offering multiple uses in one compact device. 【Extended Battery Life】Enjoy up to 15 hours of recording time and approximately 10 hours of playback on a single charge. 【High-Quality Audio】With a signal-to-noise ratio of 80dB, this device delivers clear and crisp audio reproduction. Specifications: Model: V11 Storage Capacity: 8GB Recording Format: WAV (192kbps) Playback Formats: WMA, WAV, MP3, OGG Recording Sample Rate: 48KHz Battery Life: Up to 15 hours (recording), 10 hours (playback) Signal-to-Noise Ratio: 80dB USB Interface: USB 2.0 High-Speed Compatible Systems: Windows 2000 and above Materials: Metal and titanium alloy