BBSpeaker - 2" Bluetooth Speaker with Bass
Speaker's phyical behavioiur limited its performance in different frequency band, that high frequency is using small speaker, and low frequency will use big speaker. Therefore, small or portable size speaker system usually scarificed low frequency information. After working with Dr. William Tsang, from City University of Hong Kong, for years, there is a breakthrough to replay the low frequency audio with small speaker.

BBSpeaker is a wireless speaker system, using Bluetooth for playing back audio from your smartphone, without the need of physical connection. It is small enough for carrying anywhere, and support smartphone charging, that a perfect companion with Smartphone
Bluetooth Audio :2.4GHz Bluetooth Audio
Bluetooth LE :BLE for control
Transmission Range:10m
Frequency Range :2Hz-20kHz
Battery :Li-Poly 6000mAh for around 4 hours playback
Charging :DC5V input
Aux In :TBD
Headphone Out :TBD
Dimension :130 x 70 x 50 mm
Weight :500g (TBD)
Mobile App :Android 4.3+, iOS 5+

note: Android is trademark of Google, iOS is trademark of Apple

With BBSpeaker, users could enjoy different audio experience.