Output power: 3W*2
External magnetic Speaker: 4Ω6W
Input Sensitivity: 400mV
Separation: >90dB
Signal to Noise Ratio: >80dB
Operating Voltage: DC 5V Built-in Bluetooth Wireless Transmission, Call Hand-free Stereo Audio Transmission Protocol (A2DP V1.2)
Support TF card,FM,AUX
Battery:18650 1200MAh