Product Features: Long-distance transmission: The USB Bluetooth adapter Using Realtek original chip RTL8761B, equipped with original factory drivers, conforming to Bluetooth 5.0 technical specifications, the ultra-long transmission distance of 10-20m, dual-mode low-power transmission. High Transmission rate: The transmission rate is more stable, and the transmission rate is 3Mbps, which can support the high-speed transmission of files and audio materials. Wide Compatibility: This Bluetooth adapter for pc is fully backward compatible with Bluetooth 2.0, Bluetooth 2.1, Bluetooth 3.0 specifications, universal USB2.0 3.0 interface and micro form factor, making it easy to carry. Support many systems: Support mainstream operating system Windows 10/8/7 (except Mac OS/RT/Linux) Hanging Hole Design: At the end of the mini Bluetooth adapter pc, there is a hole for packing, you can put it with your keys in your pocket, bags, Cosmetic bag, briefcase, laptop bag, and so on. Compare with similar items [EDR and A2DP Technology] 1.This USB uses EDR and A2DP technology to provide you with faster data transmission speed (up to 3 Mbps) and better sound, so as to ensure high-quality audio when transmitting your favorite music through Bluetooth devices, so as to enhance your wireless experience. 2.With its mini size and smooth design, users can connect the nano adapter to any USB port and leave it there. This would be a perfect choice. Attention: ·You cannot use Bluetooth to support TV, TV speakers, or car audio systems. ·Mac or Linux operating systems are not supported. ·Game consoles such as PS4, switch or X-box one are not supported. Bluetooth Version 5.0] Compared with Bluetooth 4.0, Bluetooth 5.0 has faster transmission rate, wider range, high energy and low consumption. With the support of enhanced data rate (EDR), it greatly improves the data transmission rate of Bluetooth technology to 3mbps. [High Compatibility] Bluetooth 5.0 can make full use of bandwidth and connect multiple Bluetooth devices at the same time, such as Bluetooth headset / speaker / microphone / keyboard and smartphone. It can work with 7 devices at the same time. Note: this Bluetooth is not applicable to Mac OS, Linux, TV and car audio. [Lightweight Appearance] Extremely compact and portable design. Easy to put in your pocket and bag and use anytime, anywhere. [Free Space] The extremely compact USB adapter allows you to put it on your laptop or PC without removing it and blocking the surrounding USB ports. It is ultra compact, easy to carry and saves space. The Bluetooth adapter interface adopts 24K gold plating design, which can effectively prevent the oxidation of USB interface. [Plug and Play] It can be plug and play. With the support of enhanced data rate (EDR), it greatly improves the data transmission rate of Bluetooth technology to 3mbps. [High Transmission Rate] It greatly alleviates the problems of unstable equipment connection, frequent disconnection and signal interruption. Our USB Bluetooth adapter applies level 2 radio technology, and the transmission distance can reach 10 - 20 meters in open places, which can cover more distance space. [System Support] System support: win7 / win8 / win8 only. 1 / win10 (driver required), (not for Mac OS, Linux, car stereo, Xbox, PS4 or TV) supports multiple languages.