Xiaomi along with Redmi Note 3 has officially launched Mi Bluetooth speakers during an event in China and this Bluetooth compatible gadget. It comes with 1500 mAh battery which comes with 8 hours of music playback time. 
It has a micro SD card slot through which you can add micro SD card for playing music directly and it also has microphone for calling features when you handset is connected via Bluetooth.
Xiaomi Mi Speakers Features
- Bluetooth v4.0 supported
- Built in Microphone for hands-free support
- Frequency response 85 Hz to 20 KHz
- Maximum Power out : 2W x [4 ohm, THD <1%]
- MicroSD card slot, AUX-in port included
- Full aluminum body
- 168 x 24.5 x 58 mm, weight 270 grams
- 1500 mAh battery life for up to 8 hours of music playback time
Xiaomi Mi Bluetooth Speaker Price in India Rs 1999 [$23 approximately]