1. Keyless Smart Cylinder, Simple Installation And Convenient Operation. 2. The Safest And Simplest Smart Cylinder. 3. No Breaking The Door Or Change The Door Body Simply Use A Hex Screwdriver To Install In 10 Minutes. 4. Suitable For Family Members Of All Lockpicking Habits. 5. Smart Home Smart From Smart Cylinder,Fingerprint + Card Swipe + Tongtong App + Key. Power Source:1 x CR123A(Alkaline) Installation:Intermediate,Tools Required(Included) Unlock Way:App,Fingerprint,Keycard,Manual Key Ip Class:Ip5x(Dust And Splash Proof) Emergency Power:1 x Micro-Type C Charging Port Door Thickness:35-45mm Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Type:B:Matte Black Colour:As Shown Material:Aluminum alloy + brass Size:Reader Dimension:42x42mm Package Contents: 1 * Lock 2 * Card 2 * Key 2 * Suction Cup 2 * Hexagon Wrench 1 * Screwdriver 1 * Reset Card 1 * English Manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.