Polling rate: 1000Hz (2.4Ghz and wired) / 90Hz (Bluetooth mode) Mounting Style: Gasket Bluetooth Device Name: Keychron V5 Max Battery: 4000 mAh Rechargeable li-polymer battery Wireless Working Time (Backlit Off): Up to 225 hours Wireless working Time (RGB): Up to 100 hours Charging Time: Around 5 Hours Bluetooth Version: 5.1 Compatible System: Windows/MacOS/Linux NKRO: Yes for both wireless and wired modes Hot-Swappable: Yes. Compatible with most of the 3 pin and 5 pin MX mechanical switches such as Gateron, Cherry MX, Kailh etc. MCU: ARM Cortex-M4 32-bit STM32F402 (256KB Flash) Backlight: South-facing RGB LED Stabilizer: Screw-in PCB stabs Charging Port: USB Type-C Cable: Type-C cable Type-A to Type-C adapter Operating Environment: -10℃ to 50℃