Panasonic KX-TGA470B Extra Handset for 47XX-series Cordless Phones Extra Handset for: KX-TG4732B, KX-TG4733B, KX-TG4734B, KX-TG4741B, KX-TG4742B, KX-TG4743B, KX-TG4744B, KX-TG4745B, KX-TG4771B, KX-TG4772B, KX-TG4772B, KX-TG4753B DECT 6.0 Technology Doesn't work without parent model Amplified Handset Volume with Dedicated Volume Key Digital Answering Machine - Not Included