Range Extender compatible with Panasonic KX-TG7500, KX-6500 and KX-4000 series cordless phone systems : Included with the Panasonic KX-TG4053B series cordless phone system : Doubles the effective transmission distance between the base unit and the cordless handset : Dimensions (H x W x D) - 3.2 x 4.4 x 1.5 inches : Weight - 2.8 oz.FeaturesVideo Features Dimensions (H x W x D) - 3.2 x 4.4 x 1.5 inchesVideo Features Doubles the effective transmission distance between the base unit and the cordless handsetVideo Features Included with the Panasonic KX-TG4053B series cordless phone systemVideo Features Range Extender compatible with Panasonic KX-TG7500, KX-6500 and KX-4000 series cordless phone systemsVideo Features Weight - 2.8 oz. Type: Misc Compatible Phone Manufacturer: Universal