Features: *USB3.1A, battery voltage detection *Support BT music/TF card/U disk playback, support BT hands-free call *Support power off memory function *2 mobile phones charge at the same time, support charging while listening to song *Noise cancellation function, built-in noise cancellation circuit, make the call sound clearer Specification: USB output: 3.1A Memory card type: U disk Support U disk capacity: ≤32GB Power supply: DC12-24V Support file type: MP3/WMA/APE/FLAC frequency range: 87.5-108MHz Signal to noise ratio: 85db (: 65db) Harmonic distortion: 0.05% : 0.1%) Working temperature: 0℃-60℃ Suitable models: DC12V -24V car general Package included: 1pc * BT modulator 【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. 【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. 【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 【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. 【High-Quality Materials】Crafted from premium, materials to ensure longevity and superior performance. Each product is meticulously tested to meet high standards of quality and safety.