【Upgraded H20 Recorder Function】The upgraded recorder has all the features you want: voice-activated recording, A-B repeat, loop playback, standard 3.5mm headphone jack, built-in speaker, timer recording, MP3/WAV format, variable speed playback, file recording, monitoring mode, password protection, automatic scheduled recording, noise reduction chip, file transfer, and other functions. 【Voice-Activated Recording】Turn on the voice control function. When the sound reaches a certain decibel, the recorder automatically starts recording. When there is no sound, the recording pauses. Adjustable sensitivity (1-7). The higher the value, the higher the sensitivity, which can significantly save storage space and reduce empty and whispered fragments. 【256GB Large Capacity, Long Battery Life】The newly upgraded 64GB smart digital recorder can store recording files for a long time, and the storage capacity is very sufficient. Long battery life. The built-in high-quality lithium battery, charged via the USB-TPC interface, can be fully charged in 2 hours. 【Multifunctional Recording, Easy to Use】This noise-canceling digital recorder is easy to use. It has complete functions, you can set a startup password for the recorder to protect your recording information; It automatically saves the recording when the battery is low and the recording files will not be lost; It supports scheduled recording; it automatically turns on the recording at a specific time and saves it.