This Bluetooth speaker is carefully built for delivery of vivid and clear sounds. It is made of quality units for excellent performance and an extended service life. This speaker is sure to bring you an amazing audio experience. 

• Output power (RMS): 6W(2 x 3W).
• Frequency response: 50Hz-20kHz.
• Input sensitivity: 500mV.
• Speaker: 2 x 1.5-inch.
• Built-in battery: 1,800mAh.
• Bluetooth chip: CSR8635 (4.0).
• With high-quality microphones.