Remote Cable Tester is a 4-1 tester with the following features: Tests 4 types of cables: RJ-45, RJ-11, USB and BNC. Tests installed wiring or patch cables. Tests shielded (STP) or unshielded (UTP) LAN cables. Tests shields in USB cables. Can test from 2 remote points. Beeper provides audible annunciation of test results. Remote unit stores in main unit. BNC terminator 25/50 Ohm indications. Straight or crossover indications. LEDs indicate connections and faults of wire and pins. RJ-11/RJ-45 are equipped with 50u gold plating. 300 feet test distance (RJ-45/RJ-11/BNC). Ergonomic portable handheld design. Powered by a 9V Alkaline battery. (Not included) Convenient battery access. Low battery indicator. Simple one button test. Fast speed testing. With a soft leather bag for carrying. High quality warranted. What’s in the box 1 * 4-in-1 Network Cable Tester 1 * Far End Remote Jack (USB RJ45 RJ11) (Attached to the main unit) 1 * BNC Remote Jack 1 * Carrying Bag 1 * Instruction Manual