Dongguan Wirelesssir Electronics Technology Co., ltd.,the professional wireless audio products manufacturer was founded in 2004,started as the sole agent of COSMOSIC chips in mainland CHINA,with its major business lied in IR&RF wireless audio transmission chips and relating accessory products, as well as offering package-service and tech support.In 2007,the re-organized company, Dongguan Wirelesssir electronics Technology Co., ltd. got its trademark "Wirelesssir" registered aimed to form his own brands that committed to supply healthy and comfortable hearing products to our parteners. By maintaining the existed business lines, the products range expanded to the fields of IR & RF audio products for elders,and those hearing loss group. Hot-selling Products including wireless TV headset,wireless TV speaker,personal sound amplifier,hearing aids and its accessories, etc.