Wireless Bluetooth Speaker Loud Loud VolumeProduct Information Features: plug in, waterproof, radio, drop proof, voice prompts, call function Type: Bluetooth speaker Connection mode: Bluetooth connection Interface type: USB Frequency response range: 100HZ 20KHZ Output power: 10~20W Signal to noise ratio: 85dB Power supply mode: built in lithium battery Operation mode: key Shell material: plastic Appearance size: 150*67*67MM Color: white, black Specifications: 10W speaker + 10W wireless
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