Plantronics deluxe charging cradle kit with spare battery compartment and hot-swapable battery, included. Compatible with Plantronics wireless headset models WH500, W740, W745, W440. Ideal for long, highly phone-intensive work days where one battery is not enough, or for multi-shift call centers.
Installation is easy. Simply snap off your existing charging cradle from the side of your base and snap this one in its place.
IMPORTANT: This will not work with the Plantronics CS models such as CS540, etc., since the charging base on those models is different and the battery on those models is not hot-swapable.