1、Adopts quality plastic, constructed with fine machining and waterproof processing, resistant to corrosion of marine water. 2、Built-in sonar offers 90 degree detect angle, 50m detect depth, 120m receiving distance, can make you find where fish it is in water or under the ice to save your time and improve fishing efficacy. 3、High frequency ensures stable signal, anti-interference and quick data return. Smart tech can automatically distinguish the water depth, fish depth, fish etc. 4、Easy to use, just need to connect the sensor with the fishing line and put the sensor on water, you can see the data on receiver. Large display with LED backlight can make you see the data clearly both in day and at night. 5、Portable and lightweight, useful tool for fishing lovers. Large capacity battery can offer you 10-15 hours of long working. Features: Adopts quality plastic, constructed with fine machining and waterproof processing, resistant to corrosion of marine water. Built-in sonar offers 90 degree detect angle, 50m detect depth, 120m receiving distance, can make you find where fish it is in water or under the ice to save your time and improve fishing efficacy. High frequency ensures stable signal, anti-interference and quick data return. Smart tech can automatically distinguish the water depth, fish depth, fish etc. Easy to use, just need to connect the sensor with the fishing line and put the sensor on water, you can see the data on receiver. Large display with LED backlight can make you see the data clearly both in day and at night. Portable and lightweight, useful tool for fishing lovers. Large capacity battery can offer you 10-15 hours of long working. Specification: Brand: KDR Model: TL86 Material: Plastic Color: Shown as picture Detect Angle: Approx. 90 degree Detect Depth: Approx. 50m / 164ft Receiving Distance: Approx. 120m / 394ft Receiver Charging Time: 3-5h Receiver Working Time: 10-15h Sensor Charging Time: 3-5h Sensor Working Time: 10-15h Receiver Size: Approx. 11.8* 6.6*2cm / 4.6* 2.6* 0.79in Sensor Size: Approx. 6.8* 4.4cm / 2.68* 1.73inch USB Cable Length: Approx. 100cm / 39.4in Charging Cable Length: Approx. 98cm / 38.6in Weight: Approx. 362g Package List: 1 x Fish Sensor 1 x Receiver 1 x Lanyard 1 x USB Cable 1 x Charging Cable 1 x Manual