1.power-onpassword: set a boot password,you need to enter the password every timeyou tum on the computer to enter the use. 2.29 languages: you can set different languages according to personalo preference. 3.timed recording: you can set htemstart/end time period to achieve time-lapse recording. 4.recording sensitivity level 7: the recording sensitivity is 7 levels,and different levels of sensitivity can beset accord-ing to different environments. Colour:Black Material:Aluminum alloy Capacity:16G Package Contents: 1x Digital Voice Recorder 1x USB Cable 1x Earphone 1x English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.