Folding Bluetooth keyboard: compatible with Android, l0S, Windows, Hongmeng system, mini portable keyboard Multi-system compatibility: compatible with HarmonyOS/l0S/Andriod/Windows and other operating platforms X-structure scissor foot keys: The keys are evenly stressed, naturally smooth, prevent fingers from slipping, input is not tiring, and work is more efficient Laptop-like keys feel comfortable and quiet: Similar to the design of laptop keys, typing is comfortable, quiet and light Slim and foldable, easy to carry: Unfolded 7.3mm, folded body thickness is only 15mm Easy to carry Small and portable, does not take up space: Small size makes it easy to carry, making the experience more comfortable Upgraded Bluetooth 5.0, smooth as flowing water: Upgraded Bluetooth 5.0, improved wireless connection stability, lower power consumption, more stable transmission and anti-interference, enjoy beautiful sound Quick full charge in two hours: More than 20 days of normal use; More than 100 days Sleep; Charge for 2-3 hours Magnetic closure design:The keyboard has built-in magnetic strips on both sides, which are automatically adsorbed when folded N times folding, carefully casting "rest assured" 100,000 times folding test Colour:Black Material:plastic Package Contents: 1 x Folding Bluetooth Keyboard Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.