Product description Color: gold, black, silver, rose gold 1. [WIRELESS CONNECTION THROUGH BLUETOOTH]- Bluetooth enables faster data transmission and a more stable connection without cables up to 15 M. 2. [FOLDABLE MINIMAL ]- FOLDABLE Dimension of 146 * 85 * 14mm, the size after opening is: 294 * 85 * 7 mm ? with the foldable design you can easily take and keep the radio keyboard, 3. [KEYBOARD RECHARGEABLE] - The wireless keyboard is built in with a 120mA battery, it allows a continuous working time up to 8 hours after full charge. 4.[UNIVERSAL COMPATIBILITY] - the keyboard is compatible with PC, laptop, smartphone, Smart TV, tablet and other Bluetooth-enabled devices with Windows / Android / MacOS, the multifunction buttons cannot be used with Mac OS. 5.[Imported aviation aluminum solid bottom shell design] - The bottom shell is made of oxidized aluminum alloy, which is sturdy and durable, and has a texture, which highlights the quality of fashion.