... :1.fluorescent light ,2.standard 109 keys ,3.Fixed USB + PS2 Interface ,4.anti-jamming ,weight: 254 g, ... 3.Fixed USB + PS2 Interface 4.anti-jamming weight: 254 gsize: length: 13.78in width:13cmmeterial: silica gel non-toxic ... ,environment frendlyinterface: Fixed USB + PS2 Interfacecolor:black,pink,blueworking temperature: - ...