The coupling on my smartphone managed easily via NFC. Simply activate NCF in the smartphone, turn on speakers, put your smartphone on the speakers and short wait DONE !!! Speakers and smartphone are connected. Those who have no NFC in smartphones, the devices can also connect via Bluetooth manually. Those who wish can also use the AUX-In input on the speaker to connect a device without Bluetooth via the headphone output. Then the Bluetooth speakers simply serves as powered speakers. The cables required for this already included.
The TaoTronics Bluetooth Speaker has a removable 1500mAh battery which is charged via a Micro-USB connector. The charging cable is also included.
Conclusion: good sound, good quality, what more could you want?!?