Functions of the bither cold wallet - a cold wallet that works offline (backup phone), private keys are protected by symbolic password, monitoring the status of Internet in process present time (wi-fi, 3G, Bluetooth), checking the security of private keys, signing unsigned hot wallet transactions, automatic backup copy and recovery of <a href=http://tokyorox.sakura.ne.jp/cgi-bin/lbbs/lbbs.cgi>http://tokyorox.sakura.ne.jp/cgi-bin/lbbs/lbbs.cgi</a>.