300 Day Battery Life, no wires for flexible placement, removeable battery for easy recharge, 2560x1440p 2K+ Video, Night Vision up to 30ft, TwoWay Audio, IP66 Weather Proof, 20 45deg C Operation, Motion Detection (not thru glass), Kit includes 4x C425 Battery Cameras, Storage options oncamera (microSD), optional H200 Smart Hub or Tapo cloud