Good day, Thank you for your attention and questions. The camera can only be connected to the mobile phone via local Wifi connection, not to the router or other Wifi hotspots. In open areas, the distance of the WiFi connection can reach 20 meters. If you have any other questions, please let us know at any time. We will definitely serve you wholeheartedly and solve the problem. Sincerely 

131ft/40m. 

Dear customer: Hello! Our Dsoon time-lapse camera can take pictures and videos in time-lapse and can also take pictures and videos regularly and automatically and automatically connect to AVI video. Below are the time ranges they can set, you can refer to it. … see more Dear customer: Hello! Our Dsoon time-lapse camera can take pictures and videos in time-lapse and can also take pictures and videos regularly and automatically and automatically connect to AVI video. Below are the time ranges they can set, you can refer to it. A.Timelapse(Photo) is timelapse for photo ,can be set to take 1 photo every 3 seconds to 24 hours, and automatically connect photos to generate time-lapse AVI videos in real time; B.Timelapse(Video) is timelapse for video , it can be set to record a short video of 3 seconds to 120 seconds every 3 seconds to 24 hours, and automatically connect to AVI video; C. Timing Photo is Timing for photo, it can be set to take 1 photo every 3 seconds to 24 hours; D. Timing Video is timing for video, it can be set to record a video from 3 seconds to 120 seconds every 3 seconds to 24 hours. Hope our answer will be helpful to you. best wishes 

Yes! I use it at both an indoor and outdoor range. 

Yes, possible. I am using it on 11mm on a crop 80d without any vigneting.