Subwoofer Bluetooth SpeakerBattery capacity: 1500mah Frequency response range: 100HZ 20KHZ Output power: 5W*3 Signal to noise ratio: 75dB Power supply: built in lithium battery Playing time: 6 hours Extended storage: 32GB Bluetooth protocol: 4. 0 Number of speakers: 2 Effective distance: 10 meters Shell material: plastic
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