Bluetooth speaker,compact size and good sound

Net Weight:                    185

Speaker:Magnetism Prevent (4Ω) 40mm x 2W

Loudspeaker Output:     2.5W

Rating Power:                  2.0W*2

Playback time:                 3-6 hours

Frequency response: 100HZ---20KHZ

Battery Charge Time:DC5V - 2.5hrs; USB - 4hrs

Battery :500mA Rechargeable battery