The ACE 150 has features found typically on more expensive metal detectors. One-Touch™ power at the touch of a button. Graphic target ID cursor has five segments of notch discrimination to filter unwanted targets. Three-level audible tone ID distinguishes between targets. Coin depth indicator shows depths highlighted as 2", 4" or 6" plus. Three search mode options – all-metal, jewelry, coins. Operates on four AA batteries (included). Adjustable arm cuff. Includes owner’s manual and instructional DVD. Two-year limited warranty. Made in USA. Length: Adjustable, 42" to 51". Weight: 2-3/4 lbs. Frequency: 6.5kHz.