Dear，Pls leave a massage to tell us what design (Color) do you want.thank you.

Note:2 x DC 9V Battery( not included)Features:1.100% brand new 2.Streamlined design and easy to carry 3.Comes with earphones usable in noisy situation 4.Flexible and versatile interface 5.Sensitive and adjustable volume control Specification:Working current:Emiter: 10mA Receiver: 30mASignal transfe mode: Digital signalSignal output level: 8Vp-pSignal transfer distance: 3KmDimension:Transmitter: 126x49x34mm Reveiver:175x42x25mmPower: by 2 x DC 9V Battery( not included)Package Contents: 1 x Cable Emitter1 x Cable Receiver1 x RJ11 Cable1 x RJ45 Cable1 x Earphone1 x Cable with Crocodile Clamp1 x User ManualDescription:1.Cable Tester for UTP STP RJ45 RJ11;2.Automatic efficient scan for the miss wiring， disorder cable， open and short circuit;3.TEL BNC test available(Adapter needed);4.Remotely test cable up to 1000 ft in length ( remote kit included );5.Protective power switch for low power consumption;6.High quality protecive case provides more secure protection;7.Judge continuity of the cables or wires;8.Track the cables or wires， and diagnose the break point;9.Receiver the tone signal on the cables or wires (telephone line);10.Identify the state in the working telephone line (clear ring， busy);11.Send a single solid tone or a dual alternating tone to the object cables or wires.