E-mail: sales@threepone.com



professional team

Well-known designer

6 production lines

Intimate after-sales


   Shenzhen Three Plus One Technology Co.,Ltd is a professional manufacturer and supplier of mobile phone accessories.We specialize in producing smart battery case, wireless charger, power bank, phone case, data  cable,Bluetooth earphone and so on.
   After several years of rapid development, we have our own several well-known brands, such as Koloco, seven.D.S, EPUIRIE and EWAX, which are sold well both in home and abroad. All our products have passed CE,ROHS,FCC and UL approval. We have mature production lines,experienced R&D and ID design team, welcome OEM/ODM orders.
   Our business philosophy is to "To sow before you reap, win-win situation with customers".With strong technical strength,we provide customers excellent  quality,competitive price and best service. Welcome long cooperation with all customers from all over the world.

Confidence stems from the consistent demand of our product quality

Global service hotline:+86-13728932198

online service

online service