[Portable Folding Design]Unique two-fold design makes it compact and lightweight, easily fitting into pockets or small bags for effortless portability during travel, commutes, or business trips. [Multi-System Compatibility]Compatible with iOS, Android, Windows, and HarmonyOS, seamlessly connecting to smartphones, tablets, and computers for versatile use across different devices and operating systems. [Multi-Device Connectivity]Pair with up to three devices simultaneously, allowing quick switching between tasks on different devices with just one key press, significantly enhancing work efficiency. [Comfortable Typing Experience]Features a well-designed key layout with moderate key travel and silent operation, ideal for quiet environments like libraries or meeting rooms while maintaining a comfortable typing feel for extended use. [Long-lasting Battery Life]Equipped with a high-capacity rechargeable battery, offering quick charging and extended usage time. Smart power management system ensures energy efficiency for worry-free operation during long outings. Specifications: Size: 30*10*1.5cm Weight: 180g Connection method: Bluetooth-compatible Bluetooth-compatible version: 5.0 Charging interface: Type-C Battery capacity: 210mAh Charging time: about 2-3 hours Standby time: about 180 days Compatible systems: iOS, Android, Microsoft, HarmonyOS and other systems Connected devices: mobile phones, computers, tablets