Product Name: Keychron V1 Ultra 8K Wireless Custom Mechanical Keyboard Item Condition: Brand New Packaging: Boxed Layout: 75% ANSI Type: Fully Assembled with Knob In the Box: 1x Keychron V1 Ultra 8K Wireless Mechanical Keyboard 1x USB Type-C Cable 1x 2.4GHz Receiver 1x Type-A to Type-C Adapter 1x Receiver Extension Adapter 1x Keycap and Switch Puller Extra Keycaps for Windows and macOS 1x User Manual Features: Compact 75% Keyboard Layout Tri-Mode Connectivity 2.4GHz Wireless, Bluetooth 5.3 and Type-C Wired Modes Up to 8000Hz Polling Rate Powered by ZMK Firmware Customizable through Keychron Launcher Web App Hot-Swappable PCB Supports 3-Pin and 5-Pin MX Mechanical Switches Keychron Silk POM Mechanical Switches Gasket Mount Structure PC Plate for a Flexible Typing Feel Multiple Layers of Acoustic Foam Screw-In PCB Stabilizers OSA Double-Shot PBT Keycaps South-Facing RGB Backlight Mix RGB Dual-Zone Lighting Customization Programmable Rotary Knob Full-Key N-Key Rollover macOS, Windows and Linux Compatible Three Adjustable Typing Angles 4000mAh Rechargeable Battery Up to 660 Hours of Wireless Use with Backlight Off Easy to Use, Plug and Play Specifications: Layout: 75% Firmware: ZMK Connectivity: 2.4GHz / Bluetooth 5.3 / Type-C Wired Polling Rate: 8000Hz / 2000Hz / 1000Hz Hot-Swappable: Yes Switch: Keychron Silk POM Switch Keycap: OSA Double-Shot PBT Plate Material: Polycarbonate Case Material: Plastic Mounting Style: Gasket Mount Stabilizer: Screw-In PCB Stabilizer Backlight: South-Facing RGB Battery: 4000mAh Rechargeable Li-Polymer Battery Wireless Working Time: Up to 660 Hours with Backlight Off Wireless Working Time with RGB: Up to 200 Hours at Lowest Brightness N-Key Rollover: Yes, in Wireless and Wired Modes Typing Angle: 3.5° / 7.1° / 9.5° Dimension: 328.5 × 148.7mm Dimension in cm: 32.85 × 14.87cm Front Height: 21.5mm Without Keycaps Back Height: 29.4mm Without Keycaps Weight: 770g ± 10g Compatible System: macOS / Windows / Linux Bluetooth Device Name: Keychron V1 Ultra 8K NOTE: Please check the selected variation carefully before placing your order. Kindly inspect the product upon receiving it and contact us through online chat if you encounter any issue. 1.When keyboards arrive from our supplier, we perform a checking process to ensure they are working as intended. 2.Before shipping the keyboard, we make sure the device is functioning properly. 3.Upon receiving the keyboard, buyers are advised to visually inspect the product for any potential shipping damage. Please take photos and an unboxing video if any issue is found. 4.We do not provide replacements or refunds for user-inflicted damage. 5.Please contact us through online chat if you face any issue and kindly allow us time to perform the necessary troubleshooting. 6.Warranty coverage applies to manufacturing defects only. Damage caused by misuse, accidents, modification or normal wear and tear is not covered. Thank you for reading this!