64GB Recorder, Small IC Voice Recorder, MP3 Player Function, Portable and Easy to Operate, OTG Function, for Meetings, Business Negotiations, and Language Learning, 40mm*40mm*7mm Ultra-compact size with the thinnest body (40 x 40 x 7 mm) and mini, feather-light weight (only 15 grams). Stress-free portability: easy to put in a wallet, pocket, or on a keychain. You can start, stop, and save files with names based on the date and time with one click. You can reject complicated procedures anytime, anywhere, and record important content. 64 GB = can store 750 hours of recording files. 150mAh = 40 hours of continuous long-time recording. Equipped with a large 64 GB capacity, it can store up to 750 hours of recording files. It also has a built-in 150mAh high-quality battery, and when charged for 2 hours, it can record continuously for about 40-50 hours. You can charge while recording. The mini recorder with playback function has the latest "PCM, triple digital intelligent noise reduction" technology that automatically reduces ambient noise by 90%. Equipped with Vormooi's unique omnidirectional stereo microphone, it captures clear voices even from distant or low places. It's a personalized, fashionable, and ideal gift choice. When the voice activation function is turned on, it starts recording by recognizing the surrounding voice, and stops recording when it can no longer recognize the surrounding voice. This saves electricity and memory capacity. Even in sudden recordings, you can start, stop, and save with one click. *OTG function: Using a Micro-USB adapter, you can directly view, listen to, and delete files on Android smartphones. Recording files are named by the date of the day. This recorder applies to MP3 and WAV file formats and can be used as an MP3 player or USB memory. The main body is made of high-quality titanium alloy, which is wear-resistant and durable. Perfect for lectures, lessons, inspiration, meetings, and interviews. A wonderful gift for teachers, students, writers, etc.