Bluetooth 5.0 Adapter, 3.5mm Audio Transmitter, TV/Car Wired Speaker Convertible to Wireless Speaker Short Latency: Short latency technology eliminates Bluetooth audio lag, so you can watch TV/movies/videos in perfect sync and listen to high-definition audio. Note: The short latency only supports TX mode. Perfect pairing: equipped with audio digital and 3.5mm/RCA connectors. Input and output are supported. It's easy to set up and enjoy wireless audio at home or on the go. Continuous Streaming & Auto Re-pairing: The built-in battery provides up to 8 hours of use, supports simultaneous charging and streaming, and automatically connects to existing paired devices. Transmitter + Receiver: A portable adapter that can be used as a transmitter or receiver, powered by Bluetooth 5.0, and can connect to two headphones/speakers at the same time. Color: Black Material: Metal + Plastic Size: 74x74x13mm Package Contents:1 * Bluetooth 5.0 Adapter 1*3.5mm AUX Audio Cable1 * English Manual Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm.