Output power: 5W*2
External magnetic Speaker: 4Ω10W
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)
Supporting playback of MP3 songs stored in TF cards; Supporting all audio input from external 3.5mm terminals
Supporting FM Automatic Search
Actual capacity of built-in batteries: 18650 1200MAh; couplet audio,EQ mode
Charging time: about 3 hours;
Playing time: about 4 hours