Specifications:1. Brand: Shengwei2. Model: UDC-324D3. Size: 32.8 * 18.2 * 7.9MM4. Interface: USB5. Color: black, white6. bluetooth standard: 4.0Features:1. Support dual mode EDR / LE stereo audio transmission.2. Small and exquisite design, take it with you and don't take up space.3. When there is no..