Product information: Color: Black Type: Micro voicer recorder Recording format: WAV Sampling rate: 16KHz Number of digits: 32kbps - 384kbps Recording method: one-click recording Microphone: built-in imported large diameter microphone Music format: WAV, WMA, MP3 Battery: Polymer Safety Lithium Battery Specifications: about 65*32*17mm Weight: about 60g Package:Voice recorder*1<br> Data cable*1 User Manual(English)*1 Multi-function voice recorderEasy to use HD recording Magnetic adsorption Long time recording One-click recording Sound Activated Recording 128G expansion Built-in cache Encrypt documents No sound/No light Long-distance noise reduction Mobile phone OTG Save files automatically when power is lost Breakthrough design, long time recordingIt is a good voice recorder without cumbersome charging. Built-in high-capacity polymer safety lithium battery and AI intelligent power management system, reducing recording power consumption, about 500 hours of long recording time to you’re your needs. Large capacity safe lithium battery About 500 hours of long recording AI intelligent power management