feature:- sonar beam200KHz sonar beam, stable signal, effectively prevent signal interference- fish alertAllows you to catch fish instantly without looking at the buoy for a long time- selectable sensitivityInformation to easily select fish according to your different needs- Underwater structure displayConvey information and environment of the subsurface and help identify fish targets- Power saving mode- Fish depth scale and fish distinction- Parameter setting memoryscope:- Display Type: TN/Anti-UV LCD- Power: 4 AAA batteries (not included)- Sensor beam angle: 45 degrees- Depth range: 0.7 - 100m / 2 - 328 feet- Operating temperature: -20 - 70 degees Celsius- Material: High quality ABSPacking weight: 0.45 kgPackage Dimensions (L x W x H): 26.50 x 16.80 x 6.00 cm / 10.43 x 6.61 x 2.36 inches