Elevate your audio experience with the BT‑22 Bluetooth Transmitter Receiver, a versatile 3-in-1 Bluetooth adapter designed to enhance connectivity and functionality. Perfect for those who want to modernize their audio equipment without the need for replacements, this device offers a seamless blend of technology and convenience. Discover the features that make the BT‑22 an essential addition to your audio setup: Dual Modes and Functions: Experience the flexibility of dual receiving and transmitting modes with a rich interface design that allows for easy switching. The BT‑22 combines receiving, transmitting, and call functions into one compact device, making it a versatile solution for all your audio needs. Stable Connection: Equipped with the latest Bluetooth chip and expertly designed software, this adapter upgrades your old equipment to Bluetooth capability, delivering a CD-like auditory experience. Enjoy a stable and high-quality connection that enhances your listening pleasure. Working Hours: The built-in 200mAh Li-ion battery provides up to 8 hours of use in RX mode and 5 hours in TX mode on a full charge. This ensures you have ample time to enjoy your favorite music, podcasts, or calls without interruption. Intelligent Charging: Never worry about running out of power. The BT‑22 allows you to charge while in use, so you can continue enjoying your audio experience even when the battery is low. Simply plug it into a power source and keep the fun going. Universal Compatibility: This Bluetooth 5.1 receiver transmitter is compatible with a wide range of devices, making it ideal for home theaters, stereo systems, car speakers, smartphones, and Android devices. Its universal compatibility ensures you can connect effortlessly to your favorite audio equipment. Upgrade your audio connectivity with the BT‑22 Bluetooth Transmitter Receiver and enjoy the freedom of wireless audio with exceptional sound quality and versatility. Whether at home or on the go, this adapter is your perfect audio companion.