BIWIBON FIngerprint Door Lock with APP Control A Professional Door Lock Brand Focus on Your Secrurity Main parts Front handle Back handle Single latch Strike plate 2 Keys Square cotter Spiral tubes Spare package Smart Fingerprint door lock with App Control Smarter, Safer and More Convenient Faster and more convenient than using traditional key and more secure with your own unique biometric identification. App Control for All APP Unlock,FIngerprint Unlock, Backup Key Unlock Upgraded Semiconductor Sensor One-touch Unlock Easy Installation Anti-corrosion Material Auto Lock Excellent Customer Support Use Smart Phone to Control You could unlock the door with your phone within Bluetooth distance. Paired with BIWIBON Tuya gateway (Sold Separately), you could unlock the door anytime and anywhere.