Specifications:
Display : 2.8inch
Wireless Operational Range : 328ft or 100m
Power Input : 3.7V rechargeable lithium battery
Charger Voltage: AC 5V,1A.
Sonar Operating Frequency : 83kHz,200kHz(cable), 125kHz(wireless)
Sonar Coverage :60° (cable),20° (cable),45° (wireless)
Depth Capability : 2-145 ft (0.7-45M)