‎Auto-Lock & Unlock, Compatible with most Single-cylinder deadbolt, Voice Control: Amazon Alexa, Google Assistant, Free App, Remote Access

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[Easy Installation & Setup] Easy 10-minutes installation. Compatible with most Single-Cylinder Deadbolts. You can keep your original keys. It comes with 4 types of Lock Adapter for single cylinder deadbolt. Gateway included
[Free App: Auto-Unlock & Lock with Remote Access]: Free App with no monthly fees, Auto-Unlock & Lock (Android phones and iPhones), Remotely unlock & lock through App. Unlock automatically when your Bluetooth is in range(when you approach your home/door). Auto lock based on a time delay. Note: Only compatible with 2.4GHz WiFi, DO NOT compatible with 5GHz WiFi signal