Bluetooth standard v2.1+edr.
Integrated switched-mode regulator.
Integrated battery charger.
Embedded kalimba dsp co-processor.
Integrated 16-bit stereo audio codec
95db snr for dac.
Enhanced audibility and noise cancellation.
Integrated with 8m bits flash memory.
Support host interface: usb or uart.
Support digital audio bus : pcm, i2s or spdif.
Hsp/hfp/a2dp/avrcp profiles support.
Rohs compliant.
Small outline. 21 x 16 x 2 mm.