Bluetooth Headset with Home Phone Adapter VTech vt840 Around-the-Neck Bluetooth v1.1 Headset with Home Phone Adapter General Features: Home phone adapter works with many corded and cordless phones Up to 30 feet (10 m) operating range Up to 5 hours of talk time Multifunction button for power on/off and call pickup/end Volume +/- pairing button LED in use indicator Earbud platform with magnetic holder Up to 30 feet operating range