SpecificationsMemory: 8GBSN: 80dbFrequency: 20Hz-20kHzDeparture Maximum: 300mWDisplay: screen 128 x 64 latticeExternal Entrance: headphonesMicrophone: 3.5mmUSB-Cable: PC Interface USB 1.1 / USB 2.0Record Format: WAVDimensions: 8 x 3.5 x 1.1 cmWeight: 35gBattery(Full load): 30 hours of recordingPackage Contents1 x 8GB USB Voice Recorder1 x 3.5mm mini-jack audio cable1 x telephone recording adapter with RJ11 cable1 x USB cable1 x Earphone1 x Microphone1 x User ManualFunction IntroductionDifferent languages.One-button recording.Very easy to use menu interface.Can be used as an MP3 player and USB disk.A-B repeating: repeat a certain part of a music file.Comes with a phone connector for recording phone calls.USB connecting, facilitating upload and download of voice files.Recordings can be timestamped with the built-in clock function.Delete function: delete MP3 music files and voice files stored in the device.File transfer is easily done via cable to a computer when the device is convenient.Sound control function (VOR) available, it can start recording with voice activation and pauses when there is no sound.NoteWhen the battery is in low power, please charge it up promptly.When charging up the battery, please turn the power button to position (ON).Every time when turning off the device, turn it off with the Play button first, and then turn off the power switch so as to avoid other problems.