AKA Selenium MFT 8956M

Continuous Power Consumption: min 40 mA Maximum Power Consumption: 110 mA Working Frequency: 290 Hz Sound Range: 400 Hz – 1 KHz Battery: Rechargeable 4500mA / 12V Charger Input: 220V AC, 50Hz Charger Output: 15V DC 1.2A Battery Charging Time (empty): maximum 3 hours Depth Control for Maximized Detection Depth Back Lit LCD Display Screen Headphone Input: 1/4″ Mono Jack Optimum Temperature Range: 33-122 Degrees F, 0-50 Degrees C Control Box Weight including Battery: 35.1 ounces, 1000 grams