A0M9 For Lenovo Tab M9 TB-310FU Leather+TPU Tablet Cover with Bluetooth Keyboard 2-in-1 Bluetooth Keyboard and Tablet CoverBluetooth keyboard and PU leather+TPU tablet protective cover 2-in-1 design Convertible Stand for Hands-Free UseCan be converted to a supporting stand for hands-free movie watching and web surfing Built-In Stylus Pen LoopThere is a loop to place your stylus pen,don't worry about losing it (not Included stylus) Durable Bluetooth 3.0 KeyboardThe Bluetooth 3.0 keyboard has long-lasting button life,durable to use Rechargeable Lithium BatteryThe keyboard has built-in lithium battery,convenient to charge and use Slim and Lightweight DesignSlim and lightweight design,convenient for travel,business trip,etc. Specifications: Model: A0M9 Weight: 411g Product size: 22.2*15.5*2cm Bluetooth version: 3.0 Effective operating distance: 10 meters Modulation mode: GFSK Operating voltage: 3.0-4.2V Operating current: