About this product1 [48GB Large Capacity Memory]: The recorder has 16GB of built-in memory and includes a 32GB card (inserted into the recorder card slot) to expand the memory. The 48GB mini recorder can store 3343 hours of recording capacity (32kbps) and 72 hours of recording capacity (1536kbps).2 [1536KBPS HD Stereo and DSP Intelligent Noise Reduction]: Our digital recorder supports clear recording with PCM recorders up to 1536Kbps, combined with powerful noise reduction technology from DSP, dynamic noise reduction microphone, and sound cancellation and filtering for different environments, you will get ultra clear recording.3 [32 hour recording time and voice controlled recorder]: The digital recorder is equipped with a 500mA rechargeable device and supports up to 32 hours of continuous recording. This digital voice recorder can set 4 different levels of voice decibels, making it easy to calculate and save recordings safely. A useful recording device suitable for lectures, conferences, interviews, speeches, and classrooms.4 [Easily Transfer Files to Computer and Download Music]: A simple charging recording device that easily transfers recordings to a computer through the included USB cable. You can play, share, delete, and rename recording files, download music, and more on your computer. This is a useful feature to give as a gift to students, professors, teachers, businessmen, and anyone who loves recording.5 [Multi functional, value for money, portable]: The pocket sized recorder can meet all the functions you want, AB repeat/loop playback standard 3.5mm headphone plug as MP3 player, built-in speaker supports 28 languages, timed recording MP 3/WMA/PLAC/APE format, variable speed playback AVR mode, password protection, timed automatic recording DSP noise reduction chip transfers files6: We promise that the recording pen packaging contains clear operating instructions. If you have any questions during use, please feel free to and we will do our best to provide assistance.7: Regarding the delay in starting recording: The first startup delay is about 6-7 seconds (this is the case for all recorders), but it only takes 2-3 seconds from the second start.