Caution: color: we ship according to the color of the first picture, in the package: If the quantity is not stated in the description, we will ship the item according to the quantity and model in the title.If the title does not have a quantity, it is 1pcs. Lan network cable tracker telephone phone wire tracer detector line finder diagnose for utp stp cat5 cat6 cat6e rj45 rj11 the product is shipped based on the color or size of the main image of the product page. Features: 100% brand new and high quality perfect for installing, debuging, maintaining telephone line and other wires or cables. Detect continuity of the cables or wires without damaging the insulation track the cables or wires, and diagnose the break point. Receiver the tone signal on the cables or wires telephone line . Identify the state in the working telephone line clear, ring, busy . Send a single solid tone or a dual alternating tone to the object cables or wires. Include a sender ms6812-t and a receiver ms6812-r . A professional & safe tool for wireman. Specifications: send tone frequency: 1.5Khz receive frequency range: 100 ~ 300khz power supply: 6f22 9v not included receiver size: 23.8 X 4.3 X 2.6Cm emitter size: 14.5 X 3.5 X 2.5Cm shell color: green net weight: 233g approx. Packing list: 1 * sender 1*receiver 1*toolkit 1*instruction manual