Our USB adapter supports simultaneous connection of various devices, like headphones, speakers, game controller, and so on. The latest Bluetooth-compatible 5.3 chip has been adopted to reduce the loss of transmission efficiency caused by interference. A sleek, ultra-small design means you can insert the Bluetooth-compatible USB adapter into any USB port without blocking surrounding USB ports. This product is easy to connect, no driver or other software required. It is constructed of ABS material. The length of this product is 2.2cm, the width is 1.5cm and the height is 0.7cm. This product is perfectly suitable for home, household, dorm, office, and so on. Item Name: USB Adapter Material: ABS Features: Compact, Portable, Delay Free, Lightweight Size Details: L: 2.2cm/0.87", W: 1.5cm/0.59", H: 0.7cm/0.28" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x USB Adapter 1 x Disc 1 x User Manual