Portable Wireless Fish Finder Smart Sonar Depth Finder with iOS & Android Phone APP for Kayak/Ice/Boat Fishing detaila: Fish size,bottom,water depth,temperature display Sonar fishing identifying technology: works in conjunction with smart phones and tablets, detection data is transmitted to the phone in real, allows you to map water beds, mark spots, log water temps and depth, add lures, species and video in the trip log. App on iOS or Android: "Fish Helper" syncs via Bluetooth smart to the device. Lightweight and useful Wide application: ideal for kayak, canoe fishing, ice fishing, works both in saltwater and, effective at locating fish and structures on , lakes, streams and. Specifications: Name:Wireless Sonar Fish Finder Size:6.8x6.8x5CM Depth:0.6-36M(2.5-120FT) Radio Frequency:2.4GHZ Bluetooth Distance:30M Sonar Frequency:125kHZ Power life lasting:10H Operating Temperature:-10-60 ℃ Sonar Radiation Angle:90 degress Power supply :DC 10V-18V Depth range :0.6M-30M Language Classification :English Specifications: Fish size,bottom,water depth,temperature display Sonar fishing identifying technology App on iOS or Android Lightweight portable and useful Wide application Package Included: 1 x wireless remote sonar sensor 1 x manual 1 x charging cable