Manual Activation; 96 Hours Standby Operational Life/ 12 Hours Active Operational Life; Replaceable Lithium Battery; 5 Years Battery Life; -20 Degree Fahrenheit To 55 Degree Fahrenheit Operating Temperature; 0.4 Watt Power Output; Waterproof Up To 10 Meters; 2.56 Inch Width x 2.36 Inch Depth x 8.94 Inch Height; FCC/ MED/ Industry Canada/ Industry Chinese CCS/ IMO/ IEC Certified; With Vessel Mounting Bracket