Usage Tips:【2-in-1 Bluetooth-compatible Keyboard and Tablet Cover】Bluetooth-compatible keyboard and PU leather tablet protective case 2-in-1 design【Convertible Stand for Hands-Free Use】Can be converted to a supporting stand for hands-free movie watching and web surfing【Stylus Pen Holder Loop】There is a loop to place your stylus pen, don't worry about losing it (not Included stylus)【Durable Bluetooth-compatible 3.0 Keyboard】The Bluetooth-compatible 3.0 keyboard has long-lasting button life, durable to use【Rechargeable Lithium Battery】The keyboard has built-in lithium battery, convenient to charge and use【Slim and Lightweight Design】Slim and lightweight design, convenient for travel, business trips, etc.Specifications:Model: AM31Weight: 605gProduct size: 27.5*18.3*2cmBluetooth-compatible version: 3.0Effective operating distance: 10 metersModulation mode: GFSKOperating voltage: 3.0-4.2VOperating current: <2.5mAStandby current: <0.3mASleep current: <40uACharging current: >200mAStandby time: >100 daysCharging time: 3-4 hoursLithium battery capacity: 200mAhSustainable working time: 100 hoursLithium battery life: 3 yearsKey force: 80±10gKey life: 5 million clicksOperating temperature: -10~+55℃Charging port: Type-C