yi<br><br><br><span style="font-size: 18pt;">Whether the external power supply: no external power supply<br><br></span><img align="absmiddle" src="//agdetail.image-gmkt.com/m430/416/820/480820416/img/agdetail.image-gmkt.com/416/820/480820416/img/gd4.alicdn.com/imgextra/i4/1933230406/qoo10_d5c3ec84d96a6fafe20c3136b933330e.jpg"><img align="absmiddle" src="//agdetail.image-gmkt.com/m430/416/820/480820416/img/agdetail.image-gmkt.com/416/820/480820416/img/gd2.alicdn.com/imgextra/i2/1933230406/qoo10_5b82919c595d4a870abe19cf04a07adc.jpg">