V-Tech VT24 Manual - Manual (Page 14)

10. Specification
● Power Supply: DC16-24V
● Power Supply for built-in SMPS: AC110~~230V
● Power Consumption: standby 1.2W,working 8W
● Monitor Screen: 4 inch digital TFT
● Display Resolution: 320(RGB)*240 pixels
● Built-in Memory for MEM: 120 MB
● Picture Memo: 800pcs(inner memory),
● Wiring: 4 wires, polarity
● Monitor time: 40 seconds
● Talking time: 90 seconds
● Dimensions: 186(H)X133(W)X30(D)mm
-13-