Features: -On the specific screen you can get all the data you need, including the depth of the sea, the situation of the fish and so on. -Constructed with backlight for clear viewing at night. -Apply to lake, river, sea and other fishing areas. -The host is powered by 4*AAA batteries (the battery is not included). The sensor can be charged via a charging cable. Specification: Wireless power consumption: 0.1W Depth range: 2-148ft Radio range: 100m Sonar frequency: 125kHz Sonar beam angle: 90 degrees Radio frequency: 433.92MHz Color: black Working temperature: -20~70℃ Material: ABS Size: 2.95*4.92*1.18 inches .
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