TP-LINK (UB4A) USB Nano Bluetooth 4.0 Adapter Plug and Play Bluetooth 4.0 Nano USB Adapter Bluetooth 4.0 – Applies the latest Bluetooth 4.0 with low energy (BLE) technology and it is backward compatible with Bluetooth V3.0/2.1/2.0/1.1 Driver Free – Plug and Play for Win 8, Win 8.1, and Win 10 Nano-Sized – Ultra-small for convenient portability with reliable high performance Supported Operating System – Supports Windows 10/8.1/8/7/X Link to Your Computer via Bluetooth UB4A turns Non-Bluetooth PC or laptop into Bluetooth-capable. Just connect your Bluetooth devices to your computer and enjoy it with ease. It supports 7 Bluetooth devices at most.   Broad Operation Range With a transmission distance of up to 20 m, you can enjoy lossless music via your Bluetooth headset without hovering around your computer. The data of distance applies in an environment with few shelters.   Nano-Sized -  Plug in and forget 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.   Plug and Play for Win 8, Win 8.1, and Win 10 For Win 8, Win 8.1, and Win 10, just plug UB4A into your computer to enjoy a fast, convenient Bluetooth connection. Specification Type: Bluetooth Adapter Bluetooth Version: Bluetooth v4.0 Interface(s): USB 2.0 Weight/Dimensions: 14.8 x 6.8 x 18.9 mm Additional Features: See Overview Package Contents: Bluetooth 4.0 Nano USB Adapter UB4A Quick Installation Guide Package Type: Retail Package Weight: 0.0300 kg Warranty: 1 Year