The Deeper Smart Sonar Chirp +3 is a castable sonar that builds a 3D picture of the water beneath your rod, giving you a personal bathymetry map of the lakebed. It delivers higher-detail sonar readings with three selectable frequency beams, letting you switch between a narrow, high-frequency view for maximum target separation and a wide beam for covering more ground. A high-accuracy GPS logs your position as you fish, and the unit is backed by a 5-year warranty. The device uses a 3-frequency sonar system. The narrow 675 kHz beam has a 7° cone angle, the medium 240 kHz beam has a 20° cone angle, and the wide 100 kHz beam has a 47° cone angle. Target separation is 1 cm on the narrow beam and 2.4 cm on both the medium and wide beams. Minimum depth is 15 cm and maximum depth is 100 m. The scanning rate is up to 15 seconds per pass. A water surface temperature sensor reports readings in Celsius or Fahrenheit. The operating temperature range is 20°C to 40°C. It supports multiple global navigation systems: GPS, GLONASS, Galileo, BeiDou, and QZSS. Operating time is up to 9 hours on a full charge. Fast charging delivers 80% in 45 minutes and 100% in 75 minutes. The internal battery is a Li-Ion, 3.8V rechargeable 1300 mAh unit. The outlet adapter is not included; it requires an input of 110V/220V and outputs Micro USB at 5V 2A. Connectivity is via Wi-Fi, with a stable connection range of up to 100 m. The unit is black and has an ABS enclosure. - Material: ABS enclosure - Sonar Type: 3 Frequency - Frequency (Beam cone) Narrow 675 kHz (cone angle 7°) - Frequency (Beam cone) Medium 240 kHz (cone angle 20°) - Frequency (Beam cone) Wide 100 kHz (cone angle 47°) - Target separation: 1cm / 0.4in Narrow beam – 2.4cm / 1in Medium beam – 2.4cm / 1in Wide beam - Min-Max depth: 15cm – 100m / 6in – 330ft - Scanning rate: Up to 15 second - Temperature Sensor: Water surface temperature sensor in Celsius / Fahrenheit - Operating temperature: 20°c to 40°c - GNSS (Global positioning systems supported) – GPS, GLONASS, Galileo, BeiDou, QZSS - Operating time: Up to 9 hours - Charging technology: Fast charge – 80% in 45 min – 100% in 75 min. - Internal battery: Li-Ion, 3.8V Rechargeable, 1300 mAh - Outlet adapter (not included) – Input 110V/220V. Output Micro USB, 5V 2A - Connectivity: Wi-Fi - Connectivity range: Stable connection up to 100m / 330ft - Colour: Black