Specifications: Standby power consumption: 25ua Remote control distance: 8-10m Charging port: Micro USB Overall dimension: 155*45* 9mm Battery type: 250mah /3.7V lithium battery Support system: Android /Windows /Mac OS/Linux Wireless modulation mode: GFSK Modulation frequency: 2.4-2.4835ghz Working temperature:-20 C-65C Number of keys: 58 Power consumption:15ma Features: - [2.4GHz&Bluetooth Dual Mode] - M5 BT Multi-Function air mouse with 2.4GHz and Bluetooth Dual Model, you can choose any mode when working. - [Multi-Functions] - M5 BT with two sides, one side with, another side is a wireless keyboard with 58 Keys and a Touch Panel. - [Gyroscope Function] -With 3-Gyro + 3-Gsensor, it’s more convenient to easily operate in horizontal and vertical mode. -[ Backlight Function ] -The backlight of laser engraving is clearly mapped to each character. When long press the backlight button you can turn on /off the backlight function. -[ IR Learning Function ] - The power button supports the “infrared programming function”, it is easy to set this function in only two steps according to the user manual. Package includes: 1 x M5 Wireless Keyboard 1 x USB Cable 1 x USB Dongle 1 x User Manual