The VN-741 PC Mono Recorder is perfect for capturing notes, meetings or conversations. With an ample 4GB memory this MP3 recorder offers more than 1000 hours in mono. The integrated USB stick also allows connection to a computer with the need for a cable. Battery life is also over 100 hours; Compatible with Windows XP (SP2 or later), Windows Vista, Windows 7, Windows 8, Mac OS X 10.5 ; 10.9. Dot matrix. Built-in memory 4 GB. Voice activated. Recording time 1040 hours. Twin speed recording. 3 recording qualities. Dictation and conference recording modes. Slow_fast playback. A to B repeat function. 5 folders. Built-in microphone. Built-in microphone and speaker. Integrated speaker. Can be used as an MP3 player. WMA files can be transferred and played. Built-in USB connector. Microphone, . General information: Weight 71g. Size H10.8, W3.9, D1.68cm. Batteries required 2 x AAA (included) . Manufacturers 2 year guarantee.