We have updated the latest user manual. To obtain it, please download it via the link or to obtain the latest manual. PORTABLE DESIGN: This compact recorder is small and lightweight, perfect for lectures, meetings, classes and more. Also equipped with a 128G memory card, large storage space so that you do not have to worry about the lack of space caused by the lack of recordings LONG BATTERY LIFE: This recorder has a built-in rechargeable battery for extended recording time. Accessories include replacement refills, screwdriver, earphones, memory card, user manual, can be a beautiful gift for teachers, and other professional positions EASY PLAYBACK: You can easily view the recorded audio files on your cell phone device by linking it directly with a data cable, making it the perfect recording device for you. Friendly reminder: For data transfer, you can use a card reader to transfer data to your computer, or purchase a professional data transfer cable to connect to your computer for transfer. If you need to connect to a mobile phone, you will need to use a professional data cable and adapter for transfer. Powerful voice recording function: This digital voice recorder uses a professional-grade microphone to record clear and concise audio.