Shenzhen M-tree Limited company  is professinal manufacture of protable power bank , smart Wearable and  self balancing electric scooter.We have resoucingful experience in R&D,production and sale.  We have own Production Dept.,Engneer Dept.,QC Dept.So any idea can be come into true products within a quite short  time,and all the prodcust go through five tests  before they send out ,the quality meet CE,FCC, ROHS standards.  Serivce purposes:prosessional tean ,the price advantage,on-time delivery,help your product quickly upgrate the makrket .So now we deeply win a good reputation and support from our customers, meantime it promotes our company development in these fields. Â