SenTech’s hand verifier will detect tags and labels hidden in pockets or bags at a distance up to 12 inches (30 cm). Compact ergonomic design utilizes advanced surface mount electronics giving superior detection, and reliability. Simple push button operation with automatic power off. White Plastic Case with belt holder. Built-in audio alarm and vibrator signals tag detection. Low battery indicator. Weight 6 oz. (170 g). Uses one 9 volt Alkaline battery – included. May be set for the following alarm modes: Beep only Vibrate only Beep and Vibrate