Specifications:          General Specification             Brand Name        AIDU             Model Number        A9             Optional Color        Silver、 Gold、 Rose Gold             Net Weight (g)        135g             Dimensions (cm\/ inch)        77mm*77mm*31mm           Technical Parameters             Microphone         Yes             Connectivity         AUX connection、 TF card、 Bluetooth             Bluetooth Version        V3.0+EDR             Transmission Distance        10m(no obstacle)             Output Power         3W 4!#!amp!*!Omega;             SNR         !#!amp!*!gt;80dB             Distortion         !#!amp!*!lt;1%             Frequency Response         20-20kHz             Battery Capacity         1000mAh、 3.7V             Charging Voltage         USB DC 5V、 500mA             Standby Time (h)         200 hours             TF Card         Support (max. 32GB)    Package  Included:                  1 X AIDU A9 Bluetooth speaker            1 X USB Charging Cable            1 X AUX Audio Cable            1 X Manual