Langshixing Electronics (Shenzhen) CO., Ltd takes pride in professionally manufacturing 4CH, 8CH, 16CH, 24CH, 32CH H.264 compression realtime recording DVRs, located in 5/F, Tonggao Building A, Sanlian Industrial Park, Shiyan Town, Bao'an District, Shenzhen, Gangdon, China.With our professional product solution and service, our company improves ahead steadly.We feel more than pleased to cooperate with friends home and abroad.