The Master Lock No. 4400D Bluetooth Smart Padlock features a 1-29/32 in. (47 mm) W metal body for durability. The 9/32 in. (7 mm) Dia shackle offers 7/8 in. (22 mm) vertical clearance and is made of boron alloy, offering maximum resistance to cutting and sawing. The smartphone/app interface offers speed, ease of use and 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.

Features

Item Weight	.506
Keys & Accessories Product Type	Padlock
Lock Type	Electronic
Adjustable shackle	No
Coated	N
Color	SILVER
Color Family	Black
Lock material	Zinc
Hub Required	No hub connection available
Returnable	180-Day
Requires Hub?	No Hub Required
Locking mechanism	Ball bearing
Remote Access	No Remote Access
Power Options	Battery
Smart Home	Smart Home Enabled
Weatherproof	No
Works With	Proprietary App
Product Weight (lb.)	.506
Material	Zinc
Number of locks in pack	1
Shrouded shackle	No
Lock Product Type	Padlock
Smart Home Protocol	Bluetooth
Voice Control Hub Required	No Voice Control
Product Width (in.)	1.85
Body width (in.)	2
Product Height (in.)	3.15
Shackle diameter (in.)	0.281
Shackle clearance (in.)	0.875
Product Depth (in.)	1.06
Manufacturer Warranty	1 Year Limited