<b> Specification: </b><br> power consumption: <br>1)Ccompatible with android / ios system <br> 2) Capacity: 147feet (45 m) <br> 3) Frequency: 125kHz <br> 4) Range : 90 degrees <br> 5) WiFi range: 70 m <br> 6) WiFi frequency: 2.4 GHz <br>7) Power supply: 3.7 V rechargeable lithium-ion battery <br> 8) Charger: 5 V, 1 A <br> 9) Charge indicator: red <br> 10) Display: Blue light, <br> 11) Working hours: Fully charge 5 hours <br><br> <b> Package list: </b> <br> 1) Monitor x 1 <br> 2) Cover x 2 <br> 3) Bag x 1 <br> 4) USB cable x1 <br> 5) User manual x 1 <br> <br> <b> Reminder:</b > <br> 1) This product has no plug <br> 2) Please download the app "WIFI fish finder" in IOS App Store or Google Market, thanks. If you connect your own Wi-Fi, the default password is 12345678. <br> 3) If it's in the WiFi range of FF916, many smartphones can connect to Wi-Fi or 4G browsing the internet instead of our FF916 WIFI. Without connection sensor wifi, app "WiFi fish finder" will not show any signal. So you have to close this car-connecting network function of the smartphone. Not every smartphone of the brand can remind you that you need to disconnect WIFI to search the Internet. <br> 4) Ice fishing is not recommended by the manufacturer: "This model is not intended for use in the fishing industry." His wide 90-degree cone coupled with the fact that he floats rather than sitting under the ice. and the ice-hole cylinder could be the cone in ice fishing.