As well as using this as a normal memory stick this is also a covert USB digital voice recorder with superb quality and crystal clear recordings. To record simply slide the switch across and the light will then flash and then will go out after 3 seconds, it is now recording but only you will know this. To stop the recording you then push it to off it will then save automatically. To play the recordings back simply plug into your PC/MAC , click on the drive and choose the file you recorded - simple :) Features - Color: mainly silver and blue. - Shell material: Aluminium and plastic. - Memory capacity: 8GB. - 560 hours recording . - Auto save, recordings are saved instantly. - Silent operation. - Not Lights flash when recording - 1.5 hour charge time. - 14 hour recording time. - Wav format digital recordings. - Approx recording distance, 5 meters. - Rechargeable Li-ion battery - Size: 6.5cm x 2.2cm x 0.9cm. - Windows 98 and above (XP, Vista, 7 etc), OS 9.0 and higher. - Warm tips: Please note that there is a protective film on product surface which can prevent the product from being scratched. Just tear it off if you don't want it.