1It uses professional recording pen chip, dual-core noise reduction, support high-definition lossless linear recording at 1536Kbps. 2Adopt HD for OLED full Chinese display, while supporting 22 languages in many countries. 3Supports timed recording, recording segmentation, recording scenes, more user friendly. 4Supports lossless music formats such as MP3/WMA/FLAC/APE, and can reach HIFI level (MP3). 5Supports loop function, A-B segment repeating and other playback functions, and supports the variable speed playback adjustment function. 6Built-in external vibration speakers, share the wonderful sounds freely. 7It has a password boot function to protect internal data of the machine and prevent secret leakage. 8Support USB2.0 computer connection, easy to upload and download voice or music. WAV Format Recording: 1536Kbps for about 12 Hours 1024Kbps about 18 Hours 512Kbps about 36 Hours Memory Capacity: 8G Recording Format: WAV Music Format: MP3/WMA/WAV Sampling Rate: 48KHZ Number of Digits: 192KBPS Battery: 3.7V / 510mAh A Lithium Battery Display: 1.2 Inches (OLED Ultra HD) 1 x Recording Pen1 x Instruction Manual1 x Charging Cable1 x Headphone