The F4 Metal Detector Features:

• 11-Segment digital target identification and 4-tone audio feedback provides maximum identification of buried objects
• 2-digit numeric target value
• One-touch notch immediately eliminates unwanted targets
• Fisher's deep-seeking autotune mode
• One-touch pinpoint
• Coin depth indicator
• 1/4” plug can be used with most headphones
• Double D search coil
• 4" concentric coil included
• Requires two 9 volt alkaline batteries