Compatible Models: Universal compatibility with a wide range of audio devices, TVs, computers, and mobile phones.Color: BlackMaterial: ABS & Metal Alloy1. Universal Connectivity & Premium Build: This versatile Bluetooth audio adapter is designed for broad compatibility, seamlessly integrating with old-style speakers, audio systems, amplifiers, mixers, DVDs, desktop computers (including for Win7/8/10/XP/MAC systems), and mobile phones (for Android, Huawei HarmonyOS). Transform your legacy devices into modern Bluetooth-enabled systems with ease. Crafted from ABS and a robust metal alloy, it offers exceptional durability and a sleek aesthetic.2. Rich Audio Interfaces & High-Fidelity Sound: Experience superior sound quality with a comprehensive range of interfaces. Featuring AUX and RCA dual output, alongside digital coaxial and optical fiber inputs, this adapter supports an impressive sampling rate of 192KHz/24bit for digital signals. The golden-plated interfaces ensure stable connections and optimal signal transmission, delivering clear, immersive audio for all your media.3. NFC One-Touch Pairing & Dual Device Link: Elevate your wireless experience with advanced NFC technology. Effortlessly connect and disconnect your compatible Android or HarmonyOS phone with a simple tap for instant pairing. Furthermore, this adapter supports simultaneous connection with two mobile phones, allowing for seamless stereo playback and convenient audio sharing without the need for constant re-pairing.4. Revitalize Your Legacy Devices: Breathe new life into your existing entertainment setup. Easily convert old wired speakers, home audio systems, TVs, and even desktop computers into wireless Bluetooth powerhouses. Enjoy the freedom of streaming audio wirelessly, watch late-night TV programs or sports events via Bluetooth headphones without disturbing others, and eliminate the clutter of cumbersome cables.5. Intuitive Controls & Multimedia Playback: Designed for user convenience, the adapter features a clear LED display and dynamic RGB ambient light for a modern touch. Manage your audio effortlessly with responsive main buttons, mode switching, and precise volume controls. Additionally, enjoy direct playback from a U disk, supporting a wide for array of audio formats including MP3, FLAC, APE, WAV, MAV, AMR, ALAC, and M4A, with support for up to 64G storage thanks to its built-in HD decoder.