With this powerful and versatile device, you can hunt for coins, relics, jewellery, gold, and silver just about anywhere.
Color: Black+Yellow (Any other available color)
Battery: 6 x 1.5V AA alkaline batteries
Operating current: Standby - 65mA, Max - 150mA
Operating voltage range: 72 - 9.6V
Operating frequency: 7.5KHZ + /- 1KHZ
Tempreture range -20 ℃ - 60 ℃
Sensitivety: Min. 8 inch (Test Coin: US ¢50)
Audio frequency: 294HZ (re)
330HZ (me)
349HZ (fa)
392HZ (so)
440HZ (la)
494HZ..