Horn specification:1.5inch 4Ω
Output power:3W
Frequency response: 100HZ-20KHZ
Sensitivity: 83 db ± 2 db
Signal-to-noise ratio:≧60DB
Input sensitivity:600±100mV
Distortion:≤ 3%
Bluetooth specification: V2.1 + EDR
Music format: MP3
Battey:250 Mah polymer battery
