... operating interface of Chinese and English ♦ Built-in lithium battery with high capacity for over 10 hours of operating life ... (3A), (AC adapter 100∼240V,50/60Hz,1.5A),Built-in Lithium battery: 4400mAh,7.4V,operating time≥10 hours33Dimensions210mm*100mm ... *60mmWeightabout 1kg Note1: pulse width 10240ns, average times≥300,SNR=1 ...