The Master Lock No. 4400D Bluetooth Padlock features a 1-29/32in (47mm) wide metal body for durability. The 9/32in (7mm) diameter shackle offers 7/8in (22mm) vertical clearance and is made of boron alloy, offering maximum resistance to cutting and sawing. The smartphone/app interface offers speed, ease of use, & greater control with the ability to share access; with keyless convenience. The locking mechanism features anti-shim technology, offering maximum security. The 1 Year Limited Warranty provides peace of mind from a brand you can trust. Product Features The free iOS and Android eLocks App is designed for personal use, supporting up to 10 locks Never worry about a forgotten combination! Share access with others - temporary or permanent Share 24/7 access or limit to days or nights Monitor access history & receive tamper alerts Backup access using the directional code on lock keypad Low battery notification & reminder on the padlock and in-app Comes with easy to replace CR2450 battery Battery jump allows for temporary access if the battery dies while locked Locker Mode setting allows for storage inside a locker Product Number 4400D Body Width 1-29/32in (47mm) Shackle Dimensions A: 9/32in (7mm) B: 7/8in (22mm) C: 13/16in (20mm) Colour Silver and Black
