The VN-540 PC Mono Recorder is perfect for capturing notes, small meetings or conversations. With an ample 4GB memory this WMA recorder offers more than 495 hours in mono. A Micro USB cable is included for easy connection to PC or MAC. Battery life is also over 52 Hours; Connect to a PC to download audio recordings. Simple operation with one-touch recording. Compatible with operating system: windows vista/7/8/8.1/10. Operating system: mac os x 10.5 10.11. Built-in memory 4 GB. Recording time 495 hours. Twin speed recording. 3 recording qualities. Dictation and conference recording modes. Slow_fast playback. 3 folders. Built-in microphone. Built-in microphone and speaker. Integrated speaker. WMA files can be transferred and played. USB cable, not required, microphone, headphones and microphone. General information: Weight 249g. Size H15.5, W13, D4.5cm. Batteries required 2 x AAA (included) . Manufacturers 2 year guarantee.