SENAO SN-258 Plus Long Range Distance Cordless Telephone

Fully Working USED Long Distance Cordless Phone Model  "SN-258 Plus" 
I put the new telescopic antenna for handset and the restored battery(in the old case, I inserted new elements with a capacity of 950 mAh

produced in  2000s
 This is a specific product. If you don't know how it works and have never dealt with it, then it is better not to buy these phones. A miracle will not happen! If you just put this phone on the windowsill without external antenna it will not provide communication at the desired distance urban conditions. If it was possible, no one would buy cell phones and buy these cordless phones and use them.
 return is based on the phrase: "I thought I would just put this phone on the windowsill and it will provide communication for 30 kilometers."not accepted!