Features: Multifunction: Wireless Keyboard + Touchpad + Mouse + Multimedia control keys and PC gaming control keys. Highly advanced RF 2.4G wireless technology that delivers anti-interference and reliable connection. QWERTY Full-function Mini Keyboard. Ultra sensitive touchpad with 90-degree flip design. Built-in rechargeable polymer Lithium-ion battery. USB Dongle/Receiver - no driver needed. 100% Plug and Play. Auto sleep and wake-up function of the keyboard. Can be used for PC, Notebook, Pad, Android TV Box, Smart TV, Raspberry Pi, Xbox 360, PS4, HTPC, Mini PC. Compatible with Amazon Fire TV (Not Amazon Fire TV Stick) Ergonomic design, compact and light weight. Product Specifications: Operating range: 15 meters(MAX), without signal disturbance and no direction limit. Frequency range: 2.403GHZ 2.480GHZ Operational voltage: 3.3V Charge Voltage: 4.4V 5.25V Modulation: GFSK Layout : US Channel: 78 channels TX Power: less than +5dBm Transmission rate: 1M bit/sec Frequency tolerance: +/-30ppm Power consumption: 55mA(on), 1mA(sleep) Battery Type: Built-in lithium-ion battery Package Includes: 1x Wireless Keyboard 1x Nano USB Adapter 1x Charging Data Cable 1x User Manual Note: Remove the nano USB receiver from the battery compartment and insert to the devices with a standard USB interface.