Welcome to our shop! Bluetooth Transmitter: Stream audio from your phone or tablet to non-Bluetooth devices like headphones, wired earbuds, car stereos, and stereo speakers. Bluetooth 5.0 Receiver: Transform your old stereo into a smart, Bluetooth-enabled device. Enjoy Hi-Fi music streaming by connecting the receiver to a car or home stereo system without Bluetooth. Long Battery Life: Both the transmitter and receiver offer up to 8 hours of continuous audio playback or 140 hours of standby time. Supports playing while charging. Lossless Audio Quality: Receiver mode supports aptX audio for richer, near-lossless sound, preserving more audio detail (for use with cars, wired speakers, wired headphones, etc.). Convenient: Easy to use and connect, no drivers or apps needed. The compact design makes it small, lightweight, and portable. Your satisfaction is our top priority. We are committed to providing you with the best service. If you encounter any issues after receiving the product, such as damage or incorrect quantity, please contact us immediately, and we will provide the best solution!