Main Features: <br />- Distinct display screen， you can get all the data you need， containing the depth of the sea， the situation of fish and so on <br />- Constructed with backlight design for clear display at night<br />- Equipped with string for convenient using<br />- Apply to lake， river， sea and other fishing environment<br />- The host is powered by 4 x AAA batteries ( the battery is not included )<br />- Perfect tool for outdoor fishing activities<br />- Sonar: 125KHz wireless / red<br />- Wireless power input: 0.1W<br />- Depth range: 2 - 120Ft / 0.6 - 45M<br />- Wireless operating range: 100m<br />- Sonar frequency: 125KHZ<br />- Sonar beam angle: 90 degree<br />- Radio frequency: 433.92MHz<br /><br />Note: <br />Due to the manual measurement and different measurement methods， please allow 2 - 3cm deviation. Product weight: 0.2050 kg <br /><br />Package Contents: 1 x Wireless Remote Sonar Sensor， 1 x Wireless Receiving Host， 1 x Manual ( English )， 1 x Charge Cable， 1 x String， 1 x Antenna