irocks K71R RGB backlit wireless mechanical keyboard Dalon axis black phonetic version

https://www.youtube.com/watch?v=jTY4rTKwz38 Specifications Product name: Wireless mechanical keyboard Product model: IRK71R Interface: Wired & wireless dual mode Wired: USB Wireless: 2.4GHz Backlight: RGB backlight Wireless power saving mode: 4 modes Number of keys: 107 keys Smart push roller: 1 set Switch form: mechanical switch Key travel: 4.0±0.5mm Anti-ghost key design (NKRO) for all areas Multimedia keys: 15 keys Backlit special effect keys: 8 keys Wired operating voltage/current: DC5V / 500 mA Wireless charging voltage/current: DC5V / 0.5 ~ 1A Charging interface: USB-C Wireless battery life reference value: Approximately 180 hours with backlight off RGB racing backlight (button backlight on/ring backlight on/normal brightness) about 27 hours RGB racing backlight (button backlight on/ring backlight off/normal brightness) about 40 hours Rechargeable lithium battery capacity: 3750 mAh Product weight: about 1.3 kg USB cable length: about 180 cm Product size: 444 (L) X 155(W) X 42 (H) mm Product warranty: 1 year receiver Interface: USB Product size: 18.6 (L) X 14.5 (W) X 6.1 (H) mm 【system requirement】 Microsoft's Windows system Windows® 7, Windows® 8.1, Windows® 10. USB transfer port Standard equipment Keyboard x 1 Wireless receiver x 1 USB-C cable x 1 Quick installation manual x 1