【Bluetooth 4. 0】 - Applies the latest Bluetooth 4. 0 and it is backward compatible with Bluetooth V3. 0/2. 1/2. 0/1. 1. UB400 turns Non-Bluetooth PC or laptop into Bluetooth-capable | 【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(BLE) technology for energy-saving wireless connectivity | 【Broad Operation Range】 - With a transmission distance of up to 65 ft, you can enjoy lossless music via your Bluetooth headset without hovering around your computer | 【Worry-Free Customer Support & 】 - Industry leading 24-month and free lifetime 24/7 technical support