This Sony RM-177 remote control is a great addition to your home entertainment system. It is compatible with Sony products and has a wireless range of 5-10 meters. The black remote control unit is a model from China and features wireless connectivity that allows for convenient use without tangling cords. The RM-177 is a used item that is missing the battery cover, but it is fully functional and ready for use. The remote control unit has features that make it easy to navigate and control your Sony devices. Purchase this unit today and experience an effortless way to interact with your home entertainment system.