SIMPLEX NEW GENERATION Pulse Induction Metal Detector For Long Range Metal Detector Specification of TX-PI200 Alarm: AudibleSensitivity: AdjustableDepth: AdjustablePower Supply: 12V (3 x 18650 batteries, 3300mA/h)Battery Indicator: YesSound Volume: AdjustableTest Sensitivity: Coca-Cola can ≥ 1m40cm diameter stainless steel basin ≥ 2.7m55cm diameter stainless steel basin ≥ 2.8mCharging Time: ≤ 7 hoursOperating Time: ≥ 10 hoursCharging: USB-C DC5VHeadphones: 3.5mm headphone jackCoil Dimensions: 60*60cmDetection Rod Extension: 50-130cmPackaging Dimensions: 44*28*14cmBare Weight: 1.8kg Total 6 different size coil for choose Adjustable length