NOTE: The item is compatible with windows 10/8.1/8/7/XP. However, on the box there is limited space so the manufacturer do not list all of the versions and just list the most recent versions of windows
Bluetooth 4.0 – applies the latest Bluetooth 4.0 and it is backward compatible with Bluetooth V3.0/2.1/2.0/1.1. ^
Plug & play or free driver – plug and play for Win 8, Win 8.1, and win 10. Supports Win7, XP (driver required for Win7, XP and could be downloaded from website free of charge). it is not compatible with Mac, Linux, TV^
Nano-sized – a sleek, ultra-small design means you can insert the Nano adapter into any USB port and simply keep it there, no matter when you are traveling or at home^
Reliability – enable wireless communication with Bluetooth-enabled computers, printers, phones and headsets. Utilize Bluetooth low energy) technology for energy-saving wireless connectivity. Operating Temperature-0℃~40℃ (32℉ ~104℉)^
Kind reminder: UB400 is not compatible with Mac, Linux, TV. UB400 is for PC use only so PS4/Xbox controllers could be used on PC, and is not to be used directly on Xbox/PS4. Two UB400 cannot pair with each other.