Check the listing for details. M13 Wireless Bluetooth Audio Adapter V5.3 Receiver Transmitter 2 in 1 Black. Color: Black, Condition: New, Made in China. Listed at 20.00 USD. M13 Wireless Bluetooth Audio Adapter serves as a versatile 2-in-1 receiver and transmitter, perfect for upgrading home audio systems or car stereos. This device features Bluetooth V5.3 technology for stable connectivity and includes a digital-to-analog converter. Equipped with an LED digital display and RGB multicolor indicator lights, it offers a modern aesthetic and clear status monitoring. The adapter supports multiple interfaces including AUX, RCA, USB, Coaxial, and Optical, making it compatible with a wide range of devices. With a 1000mAh battery, it provides portable convenience and supports various audio formats like MP3, WAV, and FLAC. Measurements: • Product Size: 99.5mm x 75mm x 24.2mm (L*W*H)