[Bluetooth with application] This key safe outside contains the universal Tuya Smart app, with which owners can grant other access to others by generating a temporary code [Robust and secure] Our key safe with a number code consists of high -strength zinclegation and solid steel, against hammering, sawing or lifting. [Waterproof and ] Made of stainless SPCC metal material to protect against rain, snow, block or freeze, this key safe on the outside works well at a temperature of -20 ° C to 70 ° C [4 access methods] 1 fingerprint (fast and high- identification even with wet fingers);2-10-digit passwords (offers over 100 billion password combinations);3-2 IC cards contain (for easy unlocking the key box with a number code);4 -over app [Large capacity] The inner dimensions: 11x6.6x5cm (HXBXT) enables the placing of bank cards, keys, car breaks, etc., Weight: 2.17596252594 Pounds, Manufacturer: Tuidzljd