Digital Reporting Monitor with Wi-Fi, Power Source: 18V Advanced Lithium Battery or AC Adapter, Display Type: 12.1 inch Color LCD, Resolution: 1024 x 768, Operating Temperature Range: 14 - 122 Deg F, Dimensions: 19.9 inch L x 15-1/2 inch W x 11.9 inch H, Includes: (2) 44693 Batteries, (1) 43458 Charger, Storage Temperature: -4 to 140 Deg F, Format: MPEG4 (H.264) 30 FPS Video, JPEG Photo, MPEG4 (H.256) Variable Frame Rate Autolog, Audio: Integrated Microphone and Speaker, Transfer Method: USB Drive