Product name: BT5.3 audio receiver BT version: BT V5.3 BT protocol: A2DP AVRCP Input voltage: DC 5V Interface type: AUX+RCA Product size: 83x56x25mm Transmission distance: 10 meters without obstacles Music format: MP3/APE/FLAC/WAV/WMA Product function: Plug and play, turn the wired speaker into a Bluetooth speaker in seconds Product material: PC fire retardant material Type: with rca line/without rca line (optional) include:1set BT5.3 audio receiver 【Eco-Friendly and Sustainable】Made with environmentally conscious practices, this product is eco-friendly and contributes to sustainability efforts. It is designed to minimize waste and reduce environmental impact. 【High-Quality Materials】Crafted from premium, durable materials to ensure longevity and superior performance. Each product is meticulously tested to meet high standards of quality and safety. 【Exceptional Performance】Engineered for high efficiency and effectiveness, this product delivers outstanding results every time. Its advanced features ensure consistent performance, making it a reliable choice for your needs 【Versatile Functionality】This product is multifunctional and can be used for a variety of tasks, providing you with the flexibility and convenience needed to handle multiple uses with a single tool. 【User-Friendly Design】Ergonomically designed for ease of use, this product offers intuitive controls and a comfortable grip, making it perfect for both beginners and experienced users.