**Output voltage: 3.7 v to 3.7 v
**Output power: 3.0 w * 2
**Input: 5.0 v
**Speaker: 4 Ω / 3 w * 2
**Signal to noise ratio (SNR) : p 85 decibels
**Frequency response: 100-20 KHZ
**Distortion of the output rate of 0.5% or less
**Battery: 600 horses
**Material: plastic