A:AnswerHello! The range of the handsets is 33 feet from the base unit. The range will also be influenced by the environment in which the phone system is placed, and if there are any electronics around that would weaken the signal (such as microwave ovens, Wi-Fi routers, radios). -G
A:AnswerHello. An additional handset can be purchased. Some compatible models are KX-TGEA60, KX-TGEA61, KX-TGFA61, KX-TGFA71, KX-TGFA85, and KX-TGTA61. -G
A:AnswerWe would be more than happy to look into it further. Please contact our Customer Service Team via Live Chat on the Panasonic Website, Contact Us option, Mon-Fri, 9am-5pm EST. -M