Qrio Lock (Q-SL2) 1-set ■ Only used the double-sided tape for the main unit, so it's missing. Please prepare it at a 100-yen shop or similar. ■ Size: Length 115.5mm, Width 57mm, Depth 77mm OS: iOS 14 or later, Android 8.0 or later Communication: Bluetooth® Standard Ver4.2 (LE) Output: Bluetooth® Standard Power Class 2 Frequency Band: 2.4 GHz band (2.4000 GHz to 2.4835 GHz) Included: Main unit, CR123A lithium batteries x 2, Height adjustment plate (large/small), Open/close sensor, Thumbturn holder (S/M/L), Double-sided tape for open/close sensor x 1, Fixing screws (long x 4 / short x 4), Instruction manual, etc. Thank you.