The two high-quality stereo microphones deliver crystal-clear sound quality. Their higher recording sensitivity captures more signal without compromising on sound quality. This means that you can achieve excellent recording results, even in noisy environments. The high-capacity Li-ion polymer battery can be easily charged through a standard USB (Universal Serial Bus) C jack. This guarantees extended battery life for extra-long recording up to 36 hours, ensuring that your recorder will always be ready to work when you are. The recorder requires no special installation Simply plug your recorder into your PC or Mac & play back your files or transfer them to your computer right away.