OQIMAX Bluetooth 5.4 Transmitter Receiver, Portable Wireless Airplane Audio Adapter with Hands-Free Calling, Noise Cancellation, Plug and Play Bluetooth Headphone Adapter for TV, Home Stereo, Speakers

2-in-1 Receiver Transmitter: Easily switch between TX and RX modes. In RX mode, the bluetooth headphone adapter enables older non-Bluetooth Speakers and Amplify to wireless Bluetooth playback systems. In TX mode, it converts desktop computers and Treadmill into Bluetooth-enabled, facilitating wireless audio transmission to Bluetooth headphones.

Latest Bluetooth 5.4 Technology: With the advanced Bluetooth 5.4 chip, the bluetooth transmitter receiver offers a connection range of up to 10 meters. The upgrade Bluetooth version delivers lower latency, more stable connection and faster transmission speeds. It automatically reconnects to the last paired device when powered on.

Hands-Free Calling for Safer Driving: Built with a high-quality microphone, this 3.5mm Bluetooth transmitter supports hands-free phone calls. Just press the multifunction button once to answer or end calls, allowing you to stay connected without taking your hands off the wheel.

Long Battery Life & Fast Charging: Enjoy up to 7 hours of uninterrupted music playback in receive mode, or 5 hours in transmit mode. Equipped with a Type-C fast charging port, the bluetooth airplane adapter fully recharges in just 1.5 hours. To accommodate long-term use needs, we upgraded the use-while-charging function, so you will never have power anxiety again.

High Practicality: Easily connects to various devices for versatile use. At home, connect your old TV to Bluetooth headphones for private viewing; in the car, plug it into the AUX port to turn your traditional stereo into a wireless music system; on flights, use the included dual 3.5mm adapter to enjoy in-flight entertainment with your Bluetooth headphones.