Brand N/A Model JD Color White Quantity 1 Interface RJ45 + RJ11 + USB + BNC Features BNC Network RJ-45 Telephone RJ-11 and USB tester; This JD 4-in-1 network tester is compact and with four testing interfaces: RJ-45 RJ-11 USB and BNC testing interfaces. It can be used to test the situations of the cable pre-installation and post-installation including short circuit connection intersection and no connection. The detachable modules can be parted and can test the remote terminal which is used to install network cables. One-key testing button is easy to operate multi-LED display light can clearly show you the test result when you do not use this product it will automatically shut down. This product needs a 9V alkaline battery (not included) max cable testing distance is 300 inches a carrying bag is randomly sent which is portable to carry it is really a satisfactory choice for engineers Packing List 1 x 4-in-1 network tester 1 x Carrying bag 1 x English user manual