T90 Wireless Audio Transmitter Receiver AUX 3.5mm Car Bluetooth Adapter 1. Versatile Connectivity：This Bluetooth 5.4 adapter supports both transmitting and receiving, allowing connection to two phones or two Bluetooth headphones simultaneously. 2. Wide Compatibility：Features a 3.5mm AUX interface, making it universally compatible with various devices for hands-free calling and audio streaming in your car. 3. Extended Range：Offers a Bluetooth transmission and reception range of up to 10 meters, providing flexibility in device placement. 4. Long-Lasting Battery：Equipped with a 150mAh battery, it provides approximately 8 hours of working time on a single charge. 5. Compact Design：Weighing only 54g, this adapter is lightweight and portable, perfect for use in vehicles or on-the-go. Specifications: 1. Bluetooth Version: 5.4 2. Frequency Range: 2.4GHz-2.48GHz 3. Transmission Range: less than or equal 10 meters 4. Reception Range: less than or equal 10 meters 5. Charging Voltage: DC 5V 6. Battery Capacity: 150mAh 7. Working Time: Approximately 8 hours 8. Weight: 54g