Musical instruments are fragile things. Tubes have a nasty habit of blowing, cables develop crackles when you least want them to. There is also the matter of the pesky noise code. Thankfully at Musician's Friend we have the test equipment to help you guard against such eventualities. Products like the Ebtech Swizz Army Cable Tester is a great little device and just as useful in the studio or on stage. As with everything we sell, all our Test Equipment is supported by our price & satisfaction guarantees and free standard shipping applies to all orders except heavy items.