So provided that your speakers have their own power source, it's just a matter of charging these aluminum dongles up (a single charge lasts up to 10 hours), plugging them in and then pairing the right receiver with your audio source.
Additionally, it is likely that banks will change their customer banking model, charging additional fees for checking accounts and other value-added programs as they seek another source of revenue to cover the decrease in debit card revenues.
Plugged into any AC power source from 100 to 240 volts, PowerBlock converts it to safe, efficient 10 watt charging for smartphones, tablets, and e-readers.