A cordless telephone is a wireless telephone with Limited range of mobility. Communication through cordless phones occurs via radio waves. They are powered by a battery which needs to be recharged by connecting it to the base phone.George Sweigert,an amateur radio operators an inventor, is considered to be the father of the cordless phone.
Note: cordless phone of portable tripod that were introduced in the 1970s.
Since 1970 it has been almost 50 years, and wireless phones are still popular. I'm not talking about smartphones and cellular phones, namely home wireless phones. They have become much smaller, more comfortable, the charge in the tube lasts more than a day, and most importantly - they are available. They cost really a little. In my opinion this is an excellent example of the necessary invention. Ref: https://www.bestadvisers.co.uk/best-cordless-telephones
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