If you're passionate about IT and electronics, like being up to date on technology and don't miss even the slightest details, buy  Safety-deposit box Master Lock 5440EURD Keys Black/Silver Zinc 18 x 8 x 6 cm (1 Unit)  at an unbeatable price.

Type: Keys
Battery type: 
CR123A
Lithium
Colour: Grey
Material: Zinc
Characteristics: Backlit screen
Connectivity: Bluetooth
Shape: Rectangular
Battery operated: Yes
Includes: Battery
Batteries included: Yes
Compatible: Android, iOS
Control: App
Approx. dimensions: 18 x 8 x 6 cm
Weight: 1,15 Kg