Aluminum bluetooth speaker includes the following features:

• Output power: 3W
• Impendance: 4 OHM
• Frequency response: 280hz-16Khz
• Signal & noise ratio: >=95dB
• Distortion: <=0.5%
• Distance of transmission: 10 m
• Battery capacity: 520mah
• Charging time: 2 hours
• Charging voltage: 5V
• TF-card port
• USB cable included
• Customized logo printing is welcomed

Material :

• Aluminum housing

Size closed :

• Diameter of 6.3 cm x Height of 5 cm