I welcome you to come to our shop. Our products are 100% guaranteed. If you have any questions or dissatisfaction, please contact us. Two Operation Modes: All Metal and Disc. All Metal: Lets you search Compatible with all different types of metals with auto ground balance and high sensitivity. It' s the best operation mode.Disc: Discriminates what kinds of metal is being detected. Earphone Jack: Lets you connect headphones to the detector. View Meter and Pointer: The meter pointer swings to the right if metal is found. Waterproof Search Coil: Lets you search Compatible with metal objects under shallow water. Adjustable Stem: Lets you adjust the detector' s length.Specifications:Material: ABS+metalColor: blackType: 1- 3(optional) Type 1: metal detector Type 2: metal detector+headphone Type 3: metal detector+headphone+shovelBattery: 2* 9V battery ( not included)Mode: All Metal, Disc Detection depth: 180mm( test coin: U. S 25 Cent) Earphone jack: 3. 5mm/ 0.1in Search coil diameter: 203mm/ 8.0in Control unit size: 135* 121* 72mm/ 5. 3* 4. 8* 2.8in Package size: 490* 220* 110mm/ 19. 3* 8. 7* 4.3in Package weight: Type 1: 1243g/ 2.7lb Type 2: 1443g/ 3.2lb Type 3: 1703g/ 3.8lbNote: The search coil is waterproof, but the control housing is not waterproof. Packing List: (optional) Type 1: 1* Metal Detector Main Unit 1* Detection Coil 2* Connecting Rod 1* Armrest Rod 1* Bag of Mounting Accessories 1* User Manualor Type 2: 1* Metal Detector Main Unit 1* Detection Coil 2* Connecting Rod 1* Armrest Rod 1* Bag of Mounting Accessories 1* Headphone 1* User Manualor Type 3: 1* Metal Detector Main Unit 1* Detection Coil 2* Connecting Rod 1* Armrest Rod 1* Bag of Mounting Accessories 1* Headphone 1* Shovel 1* User Manu