Features: brand new and high quality Audio Transmitter can connect headphones, speakers , you can share and enjoy music together with your family / friend / lover. With a sleek and ultra-compact design, you can take it and use it anywhere. Bluetooth-compatible Audio Transmitter with maximum range up to 80ft (20m) line of sight. (10M without interference or obstruction). Low latency technologies offer up to 80% lower latency and transmit sound quality. If you are playing games, listening to music, or watching movies, you will not experience any lip sync lag and much higher quality ound effect. USB Adapter with advanced Bluetooth-compatible 5.0 technologies, its USB audio transmitter is backward for Bluetooth-compatible 4.2 / 4.0 / 3.0 / 2.0 and can offer more stable wireless connection to your devices. The USB Audio Adapter can comfortably enhance your non-Bluetooth-compatible devices with the audio function. USB adapter can be connected to many devices, such as computers, laptops, etc., and then transmit sound quality to Bluetooth-compatible headphones and speakers. Allows you to enjoy wireless music experience. Your Bluetooth-compatible Audio Transmitter Dongle requires no driver, no need to manually download and install any drivers, just plug and for play. (No drivers for windows XP, 7,10, macOS, Linux). Specifications: Material: ABS Color: black Bluetooth-compatible version: 5.0 Universal interface: USB2.0/3.0/4.0/4.2 Acceptance range: 10-20m Transmission speed: 3mbps Frequency range: 2.4GHZ (2402-2480MHZ) Size: approx.17x6x30mm/0.67x0.24x1.18in Note: 1. There may be small deviations in size due to manual measurement, different measurement methods and tools. 2. The for image may not reflect the actual color of the item due to different shooting lights, angle and display monitor. Package includes: 1 x Bluetooth-compatible Audio Transmitter Receiver