POWERED BY NON-STOP SOLAR: Equips with 3 watts solar panel and high capacity built-in battery to power and recharge for the camera, usually 2-4 hours in full recharging. You not only do not worry about power off, also do not worry about bad weather such as rainy, cloudy or snowy. PLUG & PLAY and 100% WIRE-FREE INSTALLATION: This surveillance camera adopts to dual-band 2.4G / 5G connection technology, ensure of its wireless connection and views transmit are fast, long and stable, No need to pull wires or network cables, plug and play, truly achieving 100% wire free installation. 4MP FHD CRYSTAL CLARITY and FULL COLOR NIGHT VISION: Thiose cameras can provide you 4MP high difinition crystal clarity views whenever in day time or at night, no worry to watch events details. PTZ 360° COVERAGE and PIR DETECTION: This security cameras system adopts to 355° Pan & 90° Tilts technology and PIR detection, is perfect either to eliminate blind spot of monitoring coverage or to reduce 90% false alarms. Siren and spotlight alarm enable to deter to intruders instantly. HUMAN MOTION DETECTION and AUTO TRACKING: This surveillance NVR kit adopts to Ai technology, smart recognize human, animal, vehicle and track them, continuously and completely record the events of aler. IP66 WATERPROOF PROTECTION: This security camera system approves to IP66 waterproof rate, easily face to use at outdoor. We provide return and replacement services what amazon rules required, if any question, welcome to contact with us through amazon message at first.