Portable mini bluetooth speaker $ 16.82 Type: Bluetooth speaker Connection method: Bluetooth connection Interface type: USB Battery capacity: 850 mAh Frequency response range: 75Hz-18.5KHz Output power: 5W Signal to noise ratio: 80dB Power supply: built-in lithium battery Channel: 1 Playing time: 4 hours Bluetooth protocol: 4.2 Number of speakers 1 Effective distance: 15 meters Function: Waterproof, dustproof, anti-fall, call function Mode of operation: Button Applicable people: General Play format: MP3, WMA, WAV, FLC, APE Shell material: plastic Whether to support APP: No Speaker adjustment method: Is there a radio function: No Cabinet material: ABS
