... matrix LCD display120 character inputTransmission distance, >100 metersTransmission angle:360 degreesDimensions of handset,52.8mm * 14.5mm*116mmPower, ... volt batteries(Alkaline batteries are recommended for longer battery life)Battery life,1 to 2 years with ordinary usageBuilt ... Case:1.Portugal sports club(SCP) used ENJOY Wireless Voting Systems in their meetings.2.Kuwait international meetings ...