Up to 44 cubic feet of interior capacity. Wifi connectivity and Motorola Smart Safe app supports 24/7 realtime security monitoring. Offers audible and visual alerts that can be seen and heard from the safe. Remote open from almost anywhere. Receive intelligent medication reminders via text email or through app. Fingerprint security. USB charging port. Holes on back supports wall mounting. Strong metal cavity and Polycarbonate/ABS outer casing. Interior dimensions: 12.9"W x 9.1"D x 6.5"H. Exterior dimensions: 18.5"W x 10"D x 7.4"H.