Features: ABS-probe has high sensitivity and long detection distance. Receiver horn, anti-jamming- receivers horn, accurate outgoing signal. Function switches, includes two functions CONTand TONE for hunt and pair. Comes with a headphone port, 7-speed adjustment knob for variety of environments. Multifunctional, telephone line find, network line find, power cable line find, network cable proofreading and so on Specifications: Material: Plastic Size: Approx. Receiver: 24x4.8cm/9.45x1.89in Transmitter: 14.5x3.4cm/5.71x1.34in Alligator- Clip Line Length: Approx. 55mm Cable Test Line Length: Approx. 41mm Audio- Signal: 1.5kHZ Receiving Frequency Range: 100HZ-300kHZ Note: 2x9V batteries are needed(NOT Included) Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Receiver 1x Transmitter 1x Test Line 1x Manual 1x Storage Bag