The PulseDive Scuba Detector gives you the benefits of high end underwater metal detectors at a fraction of the cost and size. Lightweight & rugged with audio, LED light and vibration alerts! IP68Waterproof up to 60m (200ft)Built-in Wireless ModuleCompatible with Nokta Makro 2.4GHz Green Edition Wireless HeadphonesPulse InductionThis powerful technology allows for very stable operation in saltwater or in any type of soilDetection Alerts & Indicators1. Audio Only 2. Vibration Only 3. Audio & VibrationLED indicator in addition to any of the aboveLED FlashlightEasily see your target at night or when hunting underwaterDive ModeProvides easier operation underwater by locking the keys and preventing them to be pressed by water pressure while deep divingLost AlarmAfter 5 minutes of inactivity the device emits an audible alarm and LED starts flashing Operating Principle Pulse Induction Operating Frequency 3kHz Frequency Shift Yes Waterproof Up to 60m (200ft.) Built-in Wireless Module Yes Detection Modes Audio / Vibration / Audio + Vibration / LED Sensitivity 5 levels adjustable Length 45 cm (17.7'') Weight 550 gr (19,4oz) including the coil cover Battery 1650mAh Lithium Polymer Charging Time ≈2 hours Warranty 2 years Package Contents1 - PulseDive Scuba Detector with 20 cm (8") Coil & Cover2 - Security Lanyard3 - Rubber Wristband4 - USB Charging Cable5 - Dust Protection Cap6 - User Manual