Multi-Device & Cross-OS Compatibility TECKNET Bluetooth keyboard seamlessly connects and switches between 3 devices (laptop, tablet, or phone) using Bluetooth 5.0 or the included USB receiver. This wireless keyboard offers full compatibility with Windows and macOS for optimized performance. Perfect for hybrid work, study, or entertainment across your devices. (Note: Compatible with Bluetooth versions above 4.0 only). USB-C Rechargeable & Energy Efficient Equipped with a 500mAh battery and a USB-C charging port, this keyboard wireless offers up to 90 days of use on just 2 hours of charging. Its energy-saving mode automatically puts the keyboard to sleep after 30 minutes of inactivity (wakes in 1-2 seconds with a keystroke), ensuring long-lasting performance and reducing the need for frequent recharging. Lightweight & Portable The ergonomic key design of this compact computer keyboard matches your fingertips, providing satisfying feedback. The 89-key compact single-zone layout