Features: Imported aviation aluminum solid bottom shell design, the bottom shell is made of aluminum alloy oxidized material, sturdy and durable, both texture, highlighting the quality of fashion atmosphere. The back clip and the mobile phone holder are two in one, which can solve the problem that the keyboard is placed on the leg when the work input is unbalanced during the travel trip, which is convenient and practical. Durable endurance, using high-quality lithium battery, 40 hours of lasting battery life, 100 days long standby, to meet your various needs. Multimedia shortcuts, 27 Fn function hot keys, can be used in any environment, one button to respond to your needs. Unique button structure, superior hand feeling, the button is designed with scissors foot structure, comfortable to touch, good elasticity and up to 2 million times of tapping life. Highly foldable, compact and lightweight, it can be put into a pocket, it can be dustproof after folding, and the keycap is cleaner. Silicone pad design, effective protection of the keyboard is not scratched. Support for Microsoft Windows/Android/iOS operating system, mobile phone, tablet, computer universal compatibility is super strong. Specifications: Material: Aluminum alloy+ABS Size: Approx. 29.4*8.4*0.7cm/11.57*3.31*0.28inch Color: Black, Silver, Rose Golden, Golden(optional) Interface: Micro USB Key Life: ≥Two Million Click Key Quantity: 66 Executive standard: Bluetooth HID V1.0/2.0/3.0 Operate Distance: 15m/49.21ft Max Modulation system: GFSK Lithium battery: 120mA Standby Time: 100 Days Working time: 40 Days Under Every Day Work Under 8h Working Current: ＜2.6mA Package list: 1 x Keyboard 1 x Charging Cable 1 x Holder 1 x Instructions