They have been tested, but they only come as pictured any missing connections or cables are available aftermarket at a great price on

This Bose Companion 2 Series II with a 12 v missing power cable. multimedia stereo computer speakers a great addition to any desktop setup. With its universal compatibility, rectangular shape, and black color, it will blend seamlessly with any computer system. The portable speaker system is made of durable plastic and features a 3.5 mm jack for easy audio input connectivity. As pictured you only get the cable that connects the right to the left speaker exactly as pictured everything else is available pretty cheap on .

The Mini-sized portable speaker requires a power cable missing but

Inexpensive and easily found on .buy it now they sound great