Check out this affordable Bluetooth speaker, the CVGY-A366. Measuring 160mm x 58mm x 33mm and weighing 259 grams, this portable wireless speaker is equipped with a built-in microphone for hands-free calls, a microSD card slot (up to 32GB), an FM radio, a USB output port – for charging your smartphone, a 3.5mm stereo auxiliary input and a micro-USB charging port.
Powered by a 4000mAh lithium polymer battery (can be used as a power bank), the CVGY-A366 delivers a maximum power output of 3W and makes use of Bluetooth 2.1 + ED connectivity. Backed by a 12-month warranty, the CVGY-A366 will set you back just $24.11. [Product Page]