EL keyboard is soft ,thin ,waterproof,dustproof ,it can shining at night ,make a vividly effect EL key Board.It's thin, ... is mainly used in office, hospital, internet bar,EL keyboard This EL keyboard consist four parts of silica gel, film switch, ... .-power: directly connected to laptop or computer.-specification:85 key board, 109 key board.-advantages: water proof, dustproof, acidproof, alkaliproof ...