Features:1. This tester can test 4 types of cables: RJ-11, RJ-45, USB and BNC. 2. Simple one button test, fast speed testing straight or crossover indications, battery good or battery low indication and automatic deactivation.3. Test installed cable or jumper wire.4. With the function of automatic scan and detection of the network cable, check jumper correctness, short circuit and core arrangement order and other functions.5. Bright and clear LED lights show connections and faults, buzzing provides audible test results.6. Ergonomic portable handheld design. Powered by a 9V battery. (Not included) Convenient battery access. Specifications:Material: ABSPort: RJ45 network cable, RJ11 phone line, USB cable, BNC coaxial cablePower Supply: 9V Battery (Not included)Size: 14.2 * 8.3 * 2.3cm / 5.6 * 3.3 * 0.9in ( Tester) 17 * 10.5 * 3cm / 6.7 * 4.1 * 1.2in ( Buggy Bag)Weight: Approx. 230gPackage List:1 * Tester (Without Battery)1 * Connector1 * Buggy Bag1 * Manual