This Gizmo Bluetooth Padlock can turn your smart device into a key. Easy to use with the free app. Keyless design provides flexibility as you share access with friends, family, colleagues, and employees, etc. No more worrying about losing keys, forgetting the password or unauthorized key duplication!

• Battery Voltage: 3.0V
• Battery: 600mAh CR14250 battery
• Service Time: about 1 year (replaceable)
• Battery Unlock Times: about 8000-10000 times