Wide compatibility Adapter --Two Mode Transmitter and Receiver;As a Bluetooth Audio Transmitter (TX Mode), turn a non-Bluetooth TV, PC, CD player, iPod, Laptop, Tablet, MP3 / MP4 (including but not limited to) into a Bluetooth transmitter with 3.5mm jack input port. As Bluetooth Audio Receiver (RX Mode),it is ideal for home or vehicle music streaming sound system. Enjoy HIFI CD-like audio freely.(Note:please turn off the device before swithing modes.) Bluetooth 5.0 Wireless 3.5mm Adapter ---Easy to pair and compatible with 99.9% Bluetooth devices thanks to superstable Bluetooth 5.0, get quality listening and flawless streaming across a range of up to 33ft/10m.Powered by premium aptX low latency to deliver a flawless, synchronized streaming experience in TX mode with high-resolution stereo audio thats free from audio delays. Ultra-long 8 hours playing time --- The Wireless 3.5mm Adapter can work up to 8 hours when used as a receiver and up to 6 hours as a trasmitter,extend the audio playback time after 2 hours charging. Use as either a Bluetooth transmitter or receiver even while charging to stream excellent, wireless high-fidelity audio without stopping.