About this item More Convenient with 2*AAA ies: Unlike most recording devices on the market, L77 is powered by 2*AAA ies. When ies are exhausted, you can start recording immediately after replacing the ies. Effectively save charging time. The recording device displays the remaining y on the top right corner, so there is no need to worry about unexpected power cuts. Replace ies anywhere and anytime. Rechargeable AAA ies also can be used 72GB Large Capacity: Upgraded voice recorder supports 72GB capacity (8GB built-in memory and removable 64GB TF expansion) for meeting more recording needs. According to your own needs, replace the TF with a different capacity. Package only comes with a 64GB TF 1536kbps Premium Quality Sound: Our 72GB audio recorder adopts newest high-sensitivity omnidirectional rophone and DSP dyna noise cancellation recording chip. Capture 1536kbps crystal clear audio Simple Tape Recorder with Pword Protection: All buttons are on the front of the machine and the operation logic is like smart phone. You can easily learn to use it in a few seconds. This audio recording device can enable 4-digit pword protection. Keep your audio files secure always Easy Files Management: Connect this tape recorder to a computer via the supplied type-c cable for transferring, labeling recording files. Meanwhile, you can transfer music or recordings from computer to the smart audio recorder