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 9.64ozPackage Weight: 370g 13.07ozPackage Size: 28.3 * 15 * 4.8cm 11.14 * 5.91 * 1.89inTRANSMITTER:Tone Frequency: 200kHzMax. Length Distance: 500m 1640.42ftMax. Depth Distance: 50cm 1.64ftMax. Working Current: Less than 70mAMax. Signal Voltage: 15VP-PSignal Display: TonePower Supply: 1 * DC 9V NEDA 16046F22 battery NOT includedTransmitter Size: 134 * 49 * 33mm 5.28 * 1.93 * 1.30inTransmitter Weight: 75g 2.64ozRECEIVER:Frequency: 200kHzMax. Working Current: Less than 70mAEarphone Jack: 1Power Supply: 1 * DC 9V NEDA 16046F22 battery NOT includedReceiver Size: 163 * 40 * 27mm 6.42 * 1.57 * 1.06inReceiver Weight: 101g 3.56ozPacking List:1 * Transmitter1 * Receiver1 * Earphones1 * Pouch1 * Manual English