product description this is a professional membrane gaming keyboard for game lovers. excellent performance gives you awesome tapping feel. 35 keys meet all you game satisfaction. ? ergnomic keyboard this single hand keyboard is comfortable to use. the surface shape of the palm rest is designed according to the wrist posture when the palyer presses the button. n-key rollover the keyboard is n-key rollover. it means the keyboard will detect each keypress independently. you do not have to worry about a letter not being recorded because you have too many keys pressed down at once. fancy light effect there are different kinds of light effect. you just press light button to switch and you can enjoy different game atmosphere. anti-slip pad there are four silicone pad on each corners at the bottom of the keyboard. it prevents the keyboard from slipping when you are playing games. specification product interface: usb 2.0 press the number 35 keys key life: 20 million times product line length: 1.4m flash rom: 32 bytes eeprom: built-in 2k bytes operating voltage : vdd = 3 working current: 100ma item size: 26 * 18 * 4cm / 10.23 * 7.06 * 1.57in(l * w * h) item weight: approx.290g / 10.23oz package size: 26 * 18.2 * 4cm / 10.24 * 7.17 * 1.57in(l * w * h) package weight: 357g / 12.89oz package list: 1 * one-handed membrane keyboard 1 * user manual improve your gaming experience excellent performance excellent button will improve typing accuracy and precision. it provides you as much tactile feedback for each button press. ergnomic keyboard this single hand keyboard is comfortable to use. the surface shape of the palm rest is designed according to the wrist posture when the palyer presses the button. n-key rollover the keyboard is n-key rollover. it means the keyboard will detect each keypress independently. you do not have to worry about a letter not being recorded because you have too many keys pressed down at once. fancy light effect there are different kinds of light effect. you just press light button to switch and you can enjoy different game atmosphere. anti-slip pad there are four silicone pad on each corners at the bottom of the keyboard. it prevents the keyboard from slipping when you are playing games.