Eye-protecting color screen 5D mirror is reasonably set, the mirror is not warped or loose, CNC mobile phone mirror is imported Micron memory chip, the data file is stable. WAV and Mp3 dual lossless recording formats can be switched freely, Mp3 format sampling rate up to 384KBPS, The maximum sampling rate in WAV format is 3072KBPS. The battery capacity of the machine is 230MAh, and the battery can be used continuously for 40 hours. Continuously strong ability to stand by for 10 to 15 days, Support large capacity up to 8GB 16GB 32GB 64GB. 16GB storage is about 70 hours, 32GB storage is about 140 hours. Support connection with mobile phones with OTG function (without OTG cable) need to purchase by yourself. Mobile storage can store data, AB repetition, timing, clock stamp function, segmentation, easy to find important recordings, multi-language. The screen protects your eyes, you dont have to worry about the power while you work while charging, and you can record continuously for a long time. Automatically save files when the power is off. One-button quick recording setting, convenient and simple operation, clear and charming external sound, and pleasant listening effect with earphone cable.