Sound track 2.0, Output power 2*3w, Frequency 60hz-20k hz, Signal & noise ratio > 70dB, Impedeance 4 O H M (O), DC input 5V, Lithium battery capacity 3.7 V/1500mAh, Case material ABS, Bluetooth CSR4.1

• Size: 21.2 x 3.3 x 6.3
• Material: PVC
• Power source: DC
• Input Voltage (V): 5
• Output Wattage (W) : 6