Dear Sir Madam, Features:4CH 720P AHD KITS Camera type:4PCS 720P AHD CAMERA DVR type:1PCS 1080N AHD DVR Video compression:H.264 Camera Resolution:1MP 1280*720 DVR Resolution:2MP 960*1080 SATA:Support 1 SATA Camera Leds:6pcs X 10 Lamp beads,20~30 m IR Distance Camera Lens:Built-in 3.6 mm Board Lens Warranty:2 years