Qrio Lock (Q-SL2) Product Specifications Size: Length 115.5 mm / Width 57 mm / Depth 77 mm (including knob) Material: PC resin, etc. Compatible 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 Items Main unit Height adjustment plate (large / small) Open/close sensor Thumbturn holder (S / M / L) Fixing screws (short x 4)