The Coby Portable Hands Free Speaker Phone System Model CA-M500 is a wireless portable speaker system that is compatible with the W-35 model. It features a jack connector, visor clip, and multi-connection capabilities, making it easy to use while on the go. With an RMS power of 35W, this compact and convenient speakerphone offers clear sound quality for hands-free calls while traveling or on the move. Made in China, this new sealed product from Coby provides a reliable and user-friendly solution for staying connected on the road.