1、Professional recording pen chip, dual-core noise reduction, support HD lossless linear recording 1536Kbps. 2、HD OLED display in Chinese, supports 22 languages in many countries. 3、One click recording, support voice control recording and recording monitoring. 4、Support timing recording, recording segmentation, recording scene, more humanizing. 5、Support MP3/WMA/FLAC/APE and other lossless music format, can achieve HIFI level (MP3). 6、Support cycle function, A-B repeat and other playback functions, support variable speed playback adjustment function. 7、Internal and external vibration speakers, to share the wonderful sound. 8、Password startup function to protect the internal data and prevent leaks. 9、Ultra-long recording time, built-in super-large capacity battery. Battery low voltage automatic detection and protection function, standby without operation for 5 minutes automatically shut down. 10、Bookmark location function, can listen to music/voice in the middle of a paragraph. 11、Support USB0 computer connection, easy to upload and download voice or music. 1 x Audio Recorder1 x Earphone1 x Charging Line 1 x Manual Condition: 100% Brand NewItem Type: Audio RecorderLength: approx. 9.8cm/ 3.9inchDisplay: 1.2-inch (OLED ultra HD)Memory: 8GBMaximum number of recording segments: 999 in totalRecording playback frequency response range: 8KHZ to 48KHZWAV format recording: 1536Kbps about 12 hoursAbout 18 hours at 1024KbpsAbout 36 hours at 512KbpMP3 format: 192Kbps about 96 hours32Kbps about 580 hoursRecording distortion: 0.05%Signal-to-noise ratio: >80dbActual maximum output: 300mwCan play music format, stream rate: MP3, 8-320kbps WMA, 32-192kbpsBattery: 3.7V 510mah lithium batteryUSB communication standard: high speed 2.0Recommended environment: -5 to 60 degrees Celsius