This recording device features an HD noise reduction recording mode, which ensures that the audio you capture is of high quality and free from background noise. It supports two recording formats, including MP3 and WAV, giving you the flexibility to choose the one that works best for your needs. The recording time is extended, with up to 1200 minutes of recording time available. This is perfect for longer events, meetings, or interviews, where you need to record for extended periods of time without interruption. The device has a maximum number of recording files of 999, providing ample storage space for all your recordings. However, it does not support expansion cards, so you'll need to manage your recordings within this limit. There is no display screen on the device, which helps to keep it small and compact. The device uses USB 2.0 as its transmission interface, making it easy to transfer files to your computer or other devices. The device features a two-way microphone, which allows you to capture high-quality audio from different angles. With a two-way microphone, you can capture audio from both the front and back of the device, ensuring that you don't miss any important details. Overall, this recording device is ideal for anyone in need of a compact and easy-to-use recording device. Its HD noise reduction mode, extended recording time, and two-way microphone make it a great tool for a range of recording needs.