【Foldable Design】 Compact folding keyboard with touchpad for enhanced portability and versatility 【Wireless Connectivity】 Bluetooth-compatible connectivity for seamless pairing with multiple devices 【Multi-System Compatibility】 Compatible with Windows, Android, iOS, and Mac OS for broad device support 【Rechargeable Battery】 180mAh lithium battery provides up to 50 hours of continuous use and 400 hours of standby time 【Ergonomic Layout】 64-key US layout with scissor-switch mechanism for a comfortable typing experience Specifications: Model: KF86 MAX Unfolded Dimensions: 315 x 98 x 8.2mm Folded Dimensions: 157.5 x 98 x 15.8mm (without case) Material: ABS Connection: Bluetooth-compatible 5.0 IC programme: Yichip Number of Keys: 64 Key Layout: US Battery Capacity: 180mAh lithium Operating Voltage: 3.3 - 4.2V Standby Current: <0.5mA Sleep Current: <30uA Usage Time: 50 hours Standby Time: 400 hours Charging Port: Type-C Key Structure: Scissor-switch Weight: 200g (keyboard only)