1. Number of keys: 109 keys + multimedia
2. Compatible systems: Win2000, WinNT4.0, WinXP, Win.NET, Win7/8/10, Mac OS X10.8
3. Working frequency: 2.4G/BT5.0
4. Switch: TTC gold powder shaft
5. PBT two-color keycap technology
6. Lithium battery capacity: 4200mAh
7. RGB lighting effect: 22 kinds