Charging: Connect the USB interface to computer. Digital Voice Recorders that are compact and pocket sized, unobtrusive and simple to operate Clear Voice Recording. You can use it as a portable audio recorder to record anything, or simply use it as a MP3 player to listen to your favorite songs.Straightforward operation - Features auto save so your recordings are saved instantly, when the earphones are plugged in, it automatically enters playback mode and you can review your file. MP3 Conversion: Insert the headphone into, and short-press Button (-) to convert MP3 playing mode when the indicator light turns red and flashes up slowly. Charging Recording:When recording, insert a USB cable intoto connect the computer or the power supply, which means it is charging for recording. When charging, both the red light and the blue light flashes up and the latter staying on for a long time means charging full. The total charging time is around 1 hours. Time Synchronization:When connecting the computer via USB, open the drive to run the application, SetTime. Connecting the Computer:Inserted a USB cable into to connect the computer and find the right drive to save and open files. This item is in the category "Business & Industrial\Office\Office Equipment\Dictation & Stenography\Dictaphones & Voice Recorders". The seller is "bigsmall402" and is located in this country: US. This item can be shipped to United States.