Item Type: USB RecorderMaterial: ABSRecording Format: WAVRecording Mode: Record When Power On, Save When Power OffBuilt in Polymer Lithium Battery: 110mAhPackage List1 x USB Recorder1 x Memory Card1 x Instruction Manual1[Plug And Play] Mini USB recorder does not require data cable and adapter, USB plug directly into the computer, it can be used as a U disk, fast import data. 2[One Key Operation] Simple design of voice recorder, the body of only one key, eliminating complex operations, blind operation of the recording, suitable for emergency. 3[Low Battery Save] When the system detects low battery, it will automatically save the file and then shut down, the recording data will not be lost, safe and reliable. 4[Convenient ] Small, light and convenient, can be carried anywhere. 5[recording] AI intelligent recording with highdefinition audio ensures crystalclear sound quality.