Features: 1.Wireless Transmission Technology: RGB backlit keyboard uses 2.4G wireless transmission technology, 87 key design, which can be used for office and games. 2.Longer Term Standby: Office keyboard has a built in 1800mAh battery,using a 5V/1A charging device, can be fully charged in about 2 hours; 36 hours long and not dormant, dormant function, normal office standby for 10-15 days. 3.RGB Backlight: 87 key membrane keyboard supports 6 dazzling RGB backlight effects and supports locking Win function. 4.Support System: The operating system supported by 2.4G wireless keyboard is for Win XP,for Win7,for Win8,for Win10,for Android,for OS X. 5.Light Thin: 87 key wireless keyboard design, thin film keyboard design, light touch, full speed interface USB2.0, supports 1000 report rate. specification:Item Type: 2.4G Wireless Keyboard Material: ABS Keyboard Type: 87 Key Film Keyboard Connection: Wireless 2.4G Battery Type: Built in 1800mAh Lithium Ion Battery PackageList:1 x2.4GWirelessKeyboard 1 x Data line 1 x Receiver 1 x User Manual NoteDelivery with built in battery.