4-in-1 Access Smart Fingerprint Door Lock work perfectly in different settings from your personal home,rental property,co-working space,office or shop Read more Manage Your Door Lock with Your IOS/Android Smart Phone Give access to those you trust Send virtual keys to your loved ones and friends. You can also give temporary access to one time guests and visitors. Set access: always,recurring, temporary,one-time Check Unlock Record With unique keys for each user and a 24/7 activity log, you’ll be able to track who is entering your home and when – ideal if you rent rooms or have a vacation property. Intelligent Attendance Employee attendance information is transmitted to management backstage in real time. Once the employee leaving office, the key is deleted in one second. Silent Mode Turn on or turn off the lock sound as you like on TT lock app. Read more Biometric Smart Lock suitable for Left/Right-Handed doors. Easy to Install- Suitable for Left/Right-Handed doors Easy to install in minutes with a Phillips screwdriver by following short installation video. No Drills Needed,No Locksmith Needed. Suitable for Left/Right-Handed doors. Power Supply：4pcs AAA alkaline batteries（not included） Latch sizes：60mm deadbolt mortise (adjustable to 70 mm deadbolt mortise)