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Support various smartphones with Apple and Android systems. 2) Speaker power: 10W 4 inches 3) Signal-to-noise ratio: ≥85dB 4) Frequency response range: 150～20KHZ 5)Audio interface: stereo headphone plug 6) Dual Microphone Battery 500MA battery 7) Built-in 2000MA battery, very convenient to charge 8) Charging time: 1 to 2 hours 9) Playing time: 4-5 hours with full charge and medium volume 10) Power adapter requirements: input voltage: 220V output voltage: 5V current 1A/2A 11) Color: White/Black 12) Packing List: Manual*1, Charging Cable*1, Audio Cable*1,Microphone*2 13) Function: with TF card/insert U disk/with voice changing function 14)Product size: #bluetooth #bluetoothspeaker #karaoke #karaokespeaker #microphones
