Compact Design, Easy to Carry: Small and portable, fits easily into bags and pockets. Two Connections, Flexible and Interchangeable: Supports both wireless and wired connections. ① Wired Connection ② Wireless Connection Mouse and Button are Easy to Use: Mouse and keyboard functions in one. Voice Broadcast is Simple and Convenient: With its own voice broadcast function, typing is clear and easy. Press and hold Fn+K on the keyboard to activate the voice broadcast function. Sensitive Operation, Easy to Use: Operations are sensitive and fast, providing a different experience. Model: F1 Keyboard Size: 110mm(H)*250mm(W) USB Charging: Supports 5v@1A charging Battery Capacity: 1000mAH polymer lithium battery Function Key Introduction: Fn+B: Clear existing Bluetooth connection Ctrl+↑: Increase brightness Ctrl+↓: Decrease brightness Fn+K: Turn keyboard sound on/off. Ctrl+Dead: Adjust keyboard volume Fn+P: Turn keyboard sound on/off Ctrl+K: Enter mouse mode (Android only) USB Link Mode: USB Link Interface: Standard USB MINI-B type Interface Specifications: USB HID keyboard