If you look at the specs and design, they look exactly the same
My guess would be that both are manufactured by the same OEM company and simply re-branded accordingly.
Rii however has another model which is the i25A and this model includes a microphone which you can use for voice control and voice chat. So if you do not need a microphone, either Rii i25 or RKM MK705 will do. Just choose one that is cheaper.
Physical AspectsThe controller is slim and considerably light and that makes it nice when hold. This is the main reason why I chose this over MeLe F10 which is too thick for my liking.
On the main side are all the basic buttons to control your devices like the page up/down, volume, and music/video playback control buttons.
All orange buttons on the controller can be IR 'learned' and the process is very easy. This allows you to replace your TV remote controller by making it learn basic common functions like power on/off, source and volume up/down.
On the left side is the on/off toggle and also a micro USB charging port, so do remember to turn it on before use else you might think that it is malfunctioning like I did!
The built-in battery do last quite a while before it needs recharging and it can be charged with any USB powered source.
The keyboard on the other side is handy when browsing or chatting and way easier to use as compared to the Android on screen keyboard.
|Mini QWERTY keyboard|
The buttons tactile feel is OK for me though may be a little too hard for some people.
Overall I am satisfied with the controller though the transceiver location issue do bug me at times but I guess it applies to any air mouse.
ProsSlim and light; nice to hold
Beautiful design and good built quality
Easy IR learning process
ConsUp/down button needs to be IR 'learned' for use with Android devices.
Transceiver don't work well when used as keyboard due to design
Specifications:Receiver: USB Nano Dongle
RF mode: 2.4Ghz 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 class1: 86uA
Operation Voltage: 3.7V
Operating Current: 22mA
Product weight: 100g
Product Size: 170mm x 49mm x 16mm