Brand – TP-Link, Model – TP-Link UB400 Bluetooth 4.0 Nano USB Adapter, Type – Bluetooth Adapter, Interface – USB, Bluetooth Version – Bluetooth 4.0, Working/Bluetooth Range – 10 Meter, Use For – Bluetooth Headset, Game Controller, Bluetooth Mouse, Bluetooth Keyboard, Bluetooth Printers, Smartphone/Tablet, OS Compatibility – Windows 10/ 8.1/ 8/ 7/ XP, Operating Temperature – 0 Degree C – 40 Degree C, Color – Black, Dimension – 15 x 7 x 19mm, Features – Up to 7 devices connected at a time, 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, Nano-Sized – Ultra-small for convenient portability with reliable high performance, Broad Operation Range, Others – Storage Temperature: -40 Degree C – 70 Degree C, Operating Humidity: 10% – 90% non-condensing, Storage Humidity: 5% – 90% non-condensing, Warranty – 1 Year, Country of Origin – China, Made in/ Assemble – China