Rii K25A 4 in 1 Multifunction Portable 2.4GHz Mini Wireless Fly Mouse Keyboard ,Audio Feature And IR Infrared Remote Control With Rechargable Li-ion Battery for PC,Laptop,Raspberry PI 2, MacOS,Linux,

Feature: - Thank you for purchasing the Mini Multifunction Keyboard!, Wireless Mini QWERTY Keyboard & IR remote & Fly Mouse Combo, Audio Feature with USB interface receiver. And Built-in advanced lithium-ion battery, energy-efficient. - You can use it for emails, to enjoy your favorite games. It is compatible with HTPC, TV BOX running Android systems. It also supports the Sony Playstation3. Use it with your HTPC on your Sofa or browse the internet in the most comfortable fashion. - This is also a universal infrared remote controller with learning function. The remote control has a powerful ability to identify unknown format with a wide and reliable range of learning formats which means about 99.9 % TV infrared remote control on the market can be learnt. After learning the signals can be transmitted with high precision with a wide learning range(20kHz~60kHz) and a small frequency error(? 1kHz).
Specifications - Receiver (dongle): Nano style -
Connect port: With USB 2.0 above -
RF mode: 2.4G hz GFSK -
Transmission distance: Up to 10 meters -
Transmission Power: Less than +4db -
Power supply: Rechargeable 450mAh polymer Lithium-ion battery -
Charging voltage: 4.4V ~ 5.25V -
Charging current: 300mA - Sleeping Current class 1: 86 uA -
Operation Voltage: 3.7V -
Operating Current: 22mA -
Product Size: 170mm*49mm*16mm
Package Includes: - 1 x Multifunction keyboard - 1 x USB Wireless Receiver - 1 x User Manual - 1 x USB charging cable