RAYKUBE M3 Digital Fingerprint Door Lock is packed with features designed to make your home safer than ever before! It offers multiple ways to unlock, including bluetooth, mechanical keys, password, and even FINGERPRINT! Crafted from zinc alloy, this durable and reliable lock is CE certified and energy efficient. Suitable for almost any wooden, brass, or stainless steel door, it is adjustable to fit door thicknesses between 35-50mm. Plus, it's compatible with the Tuya Smartlife APP, giving you complete control over your home security. Experience peace of mind with the RAYKUBE M3!