CSTN LCD: 1.5 CSTN LCD, Resolution 128X128, 65,000 colors. Storage system: Internal Flash Memory;Can stor up to 72 pictures I/O terminals: USB1.1 Battery: Built-in rechargeable battery 3.7v 2000mAH Battery life: 180 Minute-UP Recorders with Continue Auto power off: 120 sec. File Format: All picture file format (JPEG,BMP,PHG,GIF) Operating Environment :0-40 C (32-104 F) Operating Humidity: 10-90%