... transfer Hi-FI music via wireless 3.Competitive price 4.Excellent sound Bluetooth speaker 1.Total tube shape,easy to carry2. ... ion battery and automatic recharge circuit4.The latest class-AB amplifier,lower power wasting Operating Voltage3.7VCharging5VOutput Power3wSpeaker Spec2.6Ω 3WFrequency ... 0.5%SNR≥95dbSIze60mm*60mm*54mmNotices:1.The speaker has 4 kinds of music play modes, namely TF card mode,AUX ...