Waterproof Bluetooth speaker $ 15.52 Type: Bluetooth speaker Connection mode: Bluetooth connection Interface type: USB Battery capacity: 800 Ma Frequency response range: 100Hz-20KHz Output power: 3R 3W Signal to noise ratio:75db Power supply mode: built in lithium battery Channel: mono Duration: 8 hours Extended storage: 32GB Bluetooth protocol: 4.1 Number of horns: 1 Effective distance: 10M Operation mode: key Shell material: plastic Box material: Metal Appearance dimension: 86 * 97 * 38mm Product weight: 0.168 (kg)
