FULL HD: High resolution images in 1080p resolution at 20 frames per second, combined with a 110° lens and universal ball mount delivers clarity in every direction.WEATHERPROOF: IP65 rating makes it ideal for outside use and will keep recording rain or shine.MIC & SPEAKER: Two-way audio allows you to communicate with welcomed guests, and deterrent alarm can get rid of unwanted guests.NIGHTVISION: Excellent night vision provides a night time viewing distance of up to 50 feet.CLOUD SERVICE: YI Cloud, the best anti-theft and cost effective cloud solution. With up to 5 devices on one subscription all your footage is safe from theft and damage. All data traffic between device/App to the server are secured with financial-industry standard encryption. Get one month free trial when you subscribe to YI Cloud.