1. Introduction The product is applicable in office house apartment hotel building and so on. The outdoor camera is easy to install. Indoor monitor is portable. It can be hung on the wall or be placed on the desk. 2. Features 1) 2.4GHz digital frequency hopping and encryption technology transmission distance up to 400 meters in free field robust anti-interference (2) Clear night vision can capture image in low-illumination environment (3) Rain shield for the outdoor camera is available (4) 3.5 or 7 inch TFT color panel for indoor monitor (5) Surveillance unlock hands-free call and talk (6) 16 chord melodies melody volume talk volume are adjustable (7) Date (only one camera with one monitor system) and time shown on the screen (8) Indoor monitor could take pictures automatically or by instruction. It could store up to 100 pictures with date and time (9) BL-5J battery of camera and monitor is replaceable and rechargeable (10) Select power supply for outdoor camera: 1 If 100~240V power is available near outdoor camera Plug in the power adapter to provide 5V power for outdoor camera all the while If occasionally the power is down you'd better add a BL-5J battery into the outdoor camera which will last work about 20 days. 2 If 100~240V power is not available near outdoor camera you can select: A: Add external solar charger with BL-5J battery into the outdoor camera together . The solar panel must be installed in the place where sunlight directly shines. BL-5J battery can last about 20days for outdoor camera thus enough sunlight is required within 20days. B: Add one external customized 20000mAh mobile power bank outdoor camera can work about 240 days if power bank is fully charged. C: Can work about 20 days if add a BL-5J battery only. (11) Wireless unlock control supports power on and power off unlock (12) One outdoor camera supports up to 4 indoor monitors and vice versa