Speaker Specifications: SupportA2DP,AVRCP,headset, handsfree profileWorking Range: < 10mWorking Time: 2-3 hours Dimension: 73x73x64mm1 Net weight: 143g Speaker. (Ф)40ММL oudspeaker Output: 3w Frequency Response: 280HZ- 16KHzSignal-to-Noise: > 95dBDistortion: