HY is one proffesional remote control manufacture.we have been in the field more than 20 year. we have make lots of OEM item for famous company like SAMPO, BUFFALO, xxxxx9001, 14001 achieved. and now RoHS compliant. and we have owm Tooling workroom, paiting, plastic injection departs. please contact us vincezqh at hotmail dot com for more details. best quality with competitive price.