(Black) - Smart Bluetooth 4.0 Padlock. Secure your bike, shed or even your gym locker with a robust and retro-style smart padlock! No need for combinations or keys, by controlling the ResLock from your smart phone (iOS/Andriod) via a free app or use an Morse-code input on the ResLock! Control and rename multiple ResLocks from just one app and share with friends/family! The ResLock is strong, robust and heavy duty for multiple usage with a long battery life!