Features: brand new and high quality Wireless noise reduction technology, clearer sound, easier and faster connection, more stable signal, faster transmission.Transmit and receiver 2 in 1. Low-latency audio ensures that your Bluetooth-compatible wireless device can provide sound synchronized with visual media. It reduces latency and improves the speed of audio transmission Provides a high-quality, synchronized user experience for your mobile phone , convenient and quick. Adopts advanced bluetooth-compatible 5.0 module, with Hifi high-quality sound effect. You can enjoy the freedom of wireless in applications such as games and watching videos. Specifications: Size: approx 26x15x9.3mm/1.02x0.59x0.36in Name: Bluetooth-compatible USB Adapter Bluetooth-compatible Version: 5.0 Function: Bluetooth-compatible Audio Receiving And Transmitting Combo Transmission Signal Distance: ≤10m Fully Compatible With Automatic Matching Package Includes: 1 x USB Transmitter Receiver 1 x Manual note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.