Features:Russian keyboard, professional customization, no drivers required, plug and play, as long as Bluetooth is supported. With Bluetooth wireless connection, the battery can be replaced and can be used continuously for three months. Easy to use, FN+Q/W/E One click to switch for MAC IOS, for Android, for Windows system. Key structure: keycap (including X-shaped scissor angle, double-arm suspension angle) + top cover. Ultra-thin floating button design, the main body thickness is only 6.7mm, beautiful appearance, extremely delicate, naturally revealing fashion sense. 78-key design, with 6 multimedia keys and for iPhone dedicated master keys, browse search, brightness adjustment function, photo browsing, virtual keyboard and screen switch function shortcuts. Specifications:Material: ABSSize: Approx. 28.5*12*2cm/11.22*4.72*0.79inchLanguage: RussianColor: Silver WhiteBluetooth Version: 3.0Working Distance: Approx. 10m/32.81ft MaximumCompatible System: For iOS/Mac/Android/WindowsKeys Quantity: 78Power Supply: 2*AAA(not include)Package list:1 x Keyboard1 x InstructionsNote:If the computer does not have Bluetooth function, you need to configure the Bluetooth adapter for use.The keyboard uses 2*AAA batteries and needs to be purchased by yourself..