* Sends image from inside of the trailer to smartphone or tablet in the truck. No WiFi connection or router are needed in the truck or trailer. This camera works for trailers less than 30 ft.* TE-0218 camera will work with your smartphone even when you have no cell phone service and it DOES NOT use your data package * You can continue to answer and talk on the phone while camera is running * Weatherproof metal casing for indoor/outdoor use * Color video image , resolution 264P * Infrared night vision (up to 60 ft.) * Snapshot or video recording store onto your phone * Image mirror flip function available* TE-0218 camera does not have Pan & Tilt or Zoom in-out function, no audio function * Permanent metal mount bracket and C Clamp / battery case bracket are included * Outdoor booster antenna * Power source – 9V battery (9V battery only has 20 minutes running time, it is for initial setup use only). 12V DC or 110V AC. All power adapters are included for permanent use. Or an "Emergency Jump Start Battery Pack" can run TE-0218 camera up to 12 hours. * Free App download* If use the C clamp bracket, TE-0218 can help you hook up ball & hitch first, then move the camera into the trailer to see how horses are doing while trailering on the road * Display screen, smartphone, tablet are not included, the customers need to use their own devices to see the image