Panasonic DECT 6.0 Accessory Handset with Caller ID for KX-TG7643M , KX-TG6671B , KX-TG6672B , KX-TG7644M , KX-TG7645M , KX-TG7642M , KX-TG7623B , KX-TG7622B - Black KX-TG7643M , KX-TG6671B , KX-TG6672B , KX-TG7644M , KX-TG7645M , KX-TG7642M , KX-TG7623B , KX-TG7622B. Panasonic DECT 6.0 Accessory Handset with Caller ID