Approximate project cost: <$6 Max print dimensions 53 x 25 x 22mm Convert your favorite headphones to Bluetooth headphones! This little 3D printed gadget simply clips onto your shirt, belt-clip or where ever else. Plug in your headphones and stream music from your phone! The receiver only measures 50 x 22 x 13mm and weighs only 13 grams. Perfect for working out at the gym (get rid of your bulky phone arm band), or listening to music around the home! You can also use it in your car as a Bluetooth receiver for your car stereo or at home on your home stereo! (AUX input on stereo required). Simply plug the supplied headphone jack cable into your AUX input. The receiver has an inbuilt rechargeable battery and will keep your tunes streaming for 8 hours on full charge. Charge the receiver via the USB to micro-USB cable provided. Features Bluetooth V3.0 with one touch pairing and intelligent sleep mode to conserve battery life. This is a nice and simple project to print and assemble. The receiver simply clicks into your printed collar, belt clip and you’re ready to go! Once you've downloaded the complete STL files visit http://www.project3dprint.com for direct links to purchase the electronics yourself for this project. In the mean time you can get printing!