Main features: ● Detect cable location in underground or other invisible cable, the range is 0-2m. ● Signal sensitivity for transmitter and receiver is adjustable. (0-2m) ● Easy to track with complete AC Interference Rejection ● tone trace live cable (＜220V） with socket avoiding burnout. ● Capable trace cable, such as single conductors, 2-core or multi-core cable. Benefits: ● Earphone helps work in noisy environment. ● Cable lead and socket can be used at the same time. ● Low battery indicator function. ● Rechargeable Lithium battery for transmitter.