We are professional manufactory for packing proucts,such as packing list envelope, bubble envelope, zipper bubble envelope, polymailer, security bag,label etc, our customers are including DHL, FEDEX,
Continue playing time: 4-5 hours Battery capacity:1200mA Output power:5W*2 Signal to noise ratio: 80 db Sensitivity(induction voltage):40 mv Track: 2 channel Power plug specification: MICRO USB ...