Dongguan Tonstep Electronics Technology Co., Ltd. with more than 16 years experience in designing, manufacturing and selling all kinds of computer peripheral products include computer case, power supply, keyboards, mice and peakers etc . we start to enter mobile phone, tablet PC and laptop since 2010, Now shiped 300000 pcs for each of above products. We have 16 years experience in software development and hardware designing, with advanced R&D equipment and our 25 R&D members, we can release 1 - 2 new products per month. We are also cooperating with many big research institutes in Shenzhen. Modernized equipment , skillful workers and excellent management team ensure we can easily accommodate your volume orders. Now our products are in great demand in Southeast Asia, the Middle East, Europe, and the USA. That's because all products can satisfy our clients' demand for product reliability. Tell us your requirements by e-mail or telephone now. Certificates BSCI audit have been done in 2011. FCC,CE,ROHS certificates for bluetooth keyboards CE,ROHS certificate for mouse CE,ROHS certificate for tablet PC