For more than 30 years, the company has been developing, designing and producing speaker crossover, which is owned by its brand Cwei, Kimberkap, Sprague, IAO, LMB, Jiedeng and other dozens of class 9 trademark use rights, of which Rceda has been registered in more than 30 countries around the world, including Cambodia, Vietnam, Laos, Indonesia, Malaysia and EU countries.