Key Technologies GeoSense-PI™ / Bluetooth® / aptX™ Low Latency Search Modes Difficult (default) / Normal Double-D Modes EMI Cancel (default) / Conductive Ground Cancel Ground Balance Auto / Manual (Quick-Trak) Noise Cancellation Automatic (on start-up) Manual (as needed – 5s duration) Sensitivity Manual (levels 1–10) / Auto (level 11) / Auto (level 12) Threshold Tone On / Off Volume  5 levels Length Extended: 61 in. (1550 mm) Collapsed: 26.5 in. (670 mm) Display Monochrome LCD with backlight Audio Output In-built loudspeaker Wired 3.5 mm (1/8″) headphones Bluetooth® wireless audio (aptX™ Low Latency) Headphones  ML 100 wireless headphones (Supplied) Battery (supplied) Rechargeable Lithium-ion battery 5833 mAh (12 hours runtime) Waterproof Coils: submersible to 3.3 ft. (1 m ) | Detector: splash / rain proof Operating Temprature Range 14°F to 122°F ( −10°C to 50°C ) Storing Temprature −4°F to 158°F ( −20°C to 70°C ) Warranty 3 years (36 months) from the Date of Purchase