Using high-tech chip, fingerprint unlocking is more convenient, and files are more secure. Fast and sensitive fingerprint recognition, and it only takes a few seconds to unlock. Made of zinc alloy, it is wear- and has a long service life. USB 2.0 connector, provide more stable mission performance. Plug and play, simple and convenient.<br><br> and portable, you can easily carry it with you. Parameter For interface interface: 1 6M/S- -27M/S USB interface: 1 6M/S- -29M/S (The relevant data above is measured by the development department. The actual operating current and mission speed due to the different type of devices and accessories.) Colour: gray Material:Zinc alloy<br><br>Package Contents: 1x Fingerprint U Disk 1x English manual<br><br>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.