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Product parameters: Bluetooth receiving distance: 10 meters in the open, without interference from obstacles. Frequency range: 100Hz-20KHz Output power: 3W Signal to noise ratio: ≥85dB Play time: 400mAh battery, can play for 3 hours normally.Charging time: 1-2 hours47 * 47 * 22cmProduct Features:
Bluetooth speakers, wireless connection to mobile phones, tablets, laptops, etc. to achieve wireless music playback