The underground wire locator is designed to allow the user to track low voltage cables used for garden and landscape automatic watering systems, and low voltage garden lighting systems. It can also be used to trace other metal cables.Features:Trace and locate underground wires or in-wall wires.Enable cables to be located before drilling.The detection range is 3-feet and cable length 3000-feet.Equipped a pair of 3.5mm earphones that can be connected the the receiver earphone jack to improve efficiency in a noisy environment.Designed with white LED flashlight for auxiliary lighting in the darkness.Can adjust the transmitter and receiver controls to move further distances according to the wire depth.Specifications:Material: ABSEarphone: 3.5mm earphonesNet Weight: 273g or 9.64ozPackage Weight: 370g or 13.07ozPackage Size: 28.3 x 15 x 4.8cm or 11.14 x 5.91 x 1.89inTRANSMITTER:Tone Frequency: 200kHzMax. Length Distance: 500m or 1640.42ftMax. Depth Distance: 50cm or 1.64ftMax. Working Current: Less than 70mAMax. Signal Voltage: 15VP-PSignal Display: TonePower Supply: 1 x DC 9V NEDA 1604 or 6F22 battery (NOT included)Transmitter Size: 134 x 49 x 33mm or 5.28 x 1.93 x 1.30inTransmitter Weight: 75g or 2.64ozRECEIVER:Frequency: 200kHzMax. Working Current: Less than 70mAEarphone Jack: 1Power Supply: 1 x DC 9V NEDA 1604 or 6F22 battery (NOT included)Receiver Size: 163 x 40 x 27mm or 6.42 x 1.57 x 1.06inReceiver Weight: 101g or 3.56ozPacking List:1 x Transmitter1 x Receiver1 x Earphones1 x Pouch1 x Manual (English) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.