Continuous power consumption: min 110 mA Maximum power consumption: 180mA Working Frequency: 100 Hz Sound Range: 0.2Hz - 2.0KHz Battery: Rechageable 1700mA Charger Input: 110V AC, 60Hz Charger Output: 17V DC Battery Charging Time (empty): max. 10 hours Depth Control for Maximized Detection Depth Headphone Input: 1/4" Mono Jack Optimum Temperature Range: 0-50 Degrees C Control Box Weight (incl. battery): 24.69oz. (700 g)