It’s not impossible to turn your wired speaker into a wireless speaker, but you need a suitable auidio adapter such as the Vamp. It even can power your speaker using built-in battery. If you’re curious, let’s go on checking.
The Vamp is an innovative audio adapter designed to offer you an easy way to turn your old speaker into a portable wireless speaker. As we can see from from the images, the audio adapter features sleek polyhedral design for portability, and comes with built-in Bluetooth technology, while using integrated 3.5mm audio output or speaker cable connector you can easily connect the bluetooth audio adapter with your wired speaker, in order that you can connect your smartphone or Bluetooth-enabled music player with the speaker, wirelessly play your favorite music, moreover, its built-in rechargeable battery offers over 10 hours battery life so you can turn your speaker into a portable speaker for camping and more.
At present the team of the Vamp is raising fund at Kickstarter. Pledging £35 will let you own the audio adapter. If you’re interested, jump to Kickstarter official site for more details.