Subwoofer Bluetooth speaker

Description: Connection method: Bluetooth connection Interface type: USB Battery capacity: 2000mah Frequency response range: 60Hz-15KHz Output power: 10W Signal to noise ratio: ≥75dB Power supply: built-in lithium battery Channel: 2 Playing time: 8 hours Extended storage: 32GB Bluetooth protocol: 5.0 Number of speakers: 2 Effective distance: 10 meters Function: card, voice prompt, call function, audio function Mode of operation: Button Play format: MP3, WAV Shell material: plastic Supported format: U disk Speaker adjustment method: Button Cabinet material :ABS