Features: brand new and high quality High performance chip bluetooth-compatible 5.1 version solution. Effective connecting distance- 10 meters/32.8ft. 360 ° rotating magnic keyboard, very convenient to use and share screen informations. With built-in pencil holder, organizer your pencil, easily to carry and use. Design for pro 12.9 inch 2021 2019 2018, built in 450hAm battery. Specifications: Category: Wireless Leyboard Size: approx 28.4X24.4X1.7cm/11.18x9.6x0.67in Battery Capacity: 450 mA Working voltage: 3.2~4.2V Chip: Bluetooth-compatible version 5.1 Use Distance: within 10 meters/32.8ft Interface: Bluetooth-compatible Material: ABS Color: Black / Silver / Rose Gold Package Includes: 1 PC x Keyboard with Case 1 PC x Charing Cable 1 PC x User manual note: Just keyboard Case, not including tablet&pencil Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!