I love my klipsch pro media 2.1 so much that i decided to make them even better. For me these are the best computer speakers i can afford. I did these mods over several months, buying most parts from eBay (it takes 2 to 4 weeks to arrive from china). The most expensive parts were the control pod box (10 US$), the bluetooth receiver (7$) and the relay (8$). The other parts were between a few cents and 3 dollars). I am very satisfied with the result. As can be seen in the pictures, i completely detached the control pod from the speakers (because i had to move the speakers away from the computer), added some good quality gold plated binding posts, replaced the cables, added an on/off switch and a relay to the sub woofer so that the speakers automatically switch on and off with the computer. A 12 volts signal from the computer PSU controls the relay. I added a bluetooth receiver inside the control pod. On the front picture of the pod one can see an on/on input selection switch (select between the computer speakers and bluetooth reception from my iphone and ipad) and a blue led light in-between the 2 volume knobs. On the back of the pod is the power input for the bluetooth receiver (5 volts supplied by the computer PSU), the bluetooth antenna connector and the bluetooth on/off switch. I did not alter in any way the original klipsch circuitry. I did not want to power the bluetooth from the control pod circuitry as i was afraid to alter the sound quality.