SPECIFICATIONSApplication: Desktop,Laptop,TabletAxis Body Brand: otherBacklight Type: No backlightBattery: 210 mAh batteryBattery Included: YesBrand Name: ProtoArcCertification: CEChannels: Sync up to 3 DevicesDesign1: Lightweight & PortableDesign2: Tri-Folding DesignDesign3: Scissor-Switches Quiet TypingFeatures 1: Mini Wireless KeyboardFeatures 10: Keyboard For Mobile PhoneFeatures 11: Folding Keyboard For Tablet PhoneFeatures 12: Portable Keyboard For Smart PhoneFeatures 13: Keyboard For Ipad AirFeatures 14: Foldable Keyboard For PcFeatures 15: Ultra Slim Rechargeable KeyboardFeatures 16: Office KeyboardFeatures 17: Foldable Keyboard for WindowsFeatures 18: Foldable Keyboard for IOSFeatures 19: Foldable Keyboard for AndroidFeatures 2: Portable Foldable KeyboardFeatures 3: Foldable Bluetooth KeyboardFeatures 4: Wireless Folding KeyboardFeatures 5: Foldable Mini KeyboardFeatures 6: Multi Device KeyboardFeatures 7: Folding Bluetooth KeyboardFeatures 8: Universal Foldable KeyboardFeatures 9: Wireless Keyboard For tabletFolding Dimensions: 8.4 x 4.7 x 0.82 inchFull Size keyboard: YesHigh-concerned chemical: NoneInterface Type: USB,BluetoothKeyboard Standard: 104 KeysKeycup material: Abs plasticKeycup printing: OtherLanguage: EnglishOpen Dimensions: 15.2 x 4.7 x 0.48 inchOperation Style: CapacitiveOrigin: Mainland ChinaPackage: YesStyle: Standard,Slim,Folding,Mini,For Laptop,for TabletSwitches Hot swap: NoType: Bluetooth WirelessWrist Support: No ProtoArc® XK01 Tri-Fold Bluetooth Keyboard features a tri-fold design, weighs just 10.5 ounces, and can connect to up to three devices via Bluetooth. It is light, compact, well-constructed, and easy to use. Covered by a one-year warranty. Sync up to 3 Devices Full -size Portable Design Folding Wireless Keyboard Scissor-Switches Quiet Typing Rechargeable Keyboard Stable hign The non-slip pads at the bottom keeps the keyboard balanced and stable, it won't move when typing About this item 【Folding Full-size Wireless Keyboard】 ProtoArc XK01 portable bluetooth keyboard designed with 105-key layout with number keypad (Dimensions: 15.19 x 4.68 inch ). You can adapt to its layout and enter into working state anywhere. 【Sync up to 3 Devices】Our small bluetooth keyboard allows you to pair up to 3 devices on triple bluetooth channels simultaneously. Easy switch at a press of button. Compatible with Windows, Mac OS, iOS or Android device, you can work with your ipad, phone, tablet or laptop seamlessly【Scissor-Switches Quiet Typing】The quiet and responsive scissor switches low-profile keys offer fluid, laptop-like efficiently typing. A great wireless foldable keyboard that remove over 90% of disruptive sounds and keep the familiar typing feel【Rechargeable & Portable】Bulit-in a 210 mAh battery, the travel folding keyboard has 5 months standby time in a single full charge. (Note: Type-C charging cable included). Folding Size 8.46"*4.68"*0.78", it will easily fit in your briefcase or laptop bag. Perfect for using on planes, at library, cafes, or anywhere you want.【Sturdy and Durability】Framed with aluminum body for excellent stiffness, the keyboard smart hinges has a long-term usage. It is very durable and has the ability to resist bumps. You can easily fold up with magnetic and it won’t open easily when you put it in the bag and carry around How to Connect and Switch Between 3 Device 1. Unfold the keyboard (Unfold to power on, fold it to power off );2. Single press to choose BT1, the blue indicator light will flash once to enter bluetooth mode;3. Then long press BT1 for 3-5 seconds, blue indicator flashes quickly, keyboard enters into pairing mode;4. Go to your device Bluetooth list and find “ProtoArc XK01”, click "pair", keyboard is connected;5. BT2 and BT3 connection are the same as BT 1, when successfully pair 2 or 3 devices, short press BT1/BT2/BT3 button to switch.