The Trelock Smartlock can be easily unlocked via smartphone. It is only compatible with Android. No separate power source is required. Additionally, the proven NFC technology offers high security. With a rapid pace of innovation, Trelock has made the leap from mechanics to electronics at its location in Germany. By connecting these two areas, Trelock is now taking a step further and offers the SL 460 Smartlock, a familiar secure frame lock with the high user comfort of modern technology.