2013 top selling bluetooth speakers

Bluetooth speakers, wireless mobile phone, tablet, laptop computers, wireless music playback
International standards, using bluetooth 3.0 + EDR/V3.0, 10 meters range wireless connection (empty)
Built-in high quality 13 core speaker, focused on human testing
With voice calls, call quality is clear, no reply
Built-in, and sustainable play 2 hours
Have the LINE - IN interface to an external mp3, computers, audio CD, etc
, the power supply: DC charging (5 v - 1000 ma, 500).
Bernard frequency range: 150 hz - 20 KHZ
B. signal-to-noise ratio: ≧ 85 db
, output power: 3 * 1 w
Bernard resistance: 4 Ω