Adapter with built-in digital signal conversion chip for connecting to various interface devices. Supports RCA audio/3.5mm audio output and USB disk playback. Driver-free plug-and-play functionality for easy setup. Supports formats such as WAV, WMA, APE, FLAC, MP3, and more for versatile audio playback. Features Bluetooth 5.1 technology with multi-protocol transmission, enabling faster and more stable connections with lossless audio transmission and high-fidelity sound quality. Introducing a high-performance adapter designed for seamless connectivity with a wide range of devices. Equipped with RCA and 3.5mm audio outputs, this adapter allows you to enjoy high-quality audio on various speakers or headphones. It supports direct playback from USB drives, making it convenient to access your music files without additional devices. The plug-and-play design ensures quick and easy setup without the need for drivers. With Bluetooth 5.1 compatibility, the adapter delivers a stable wireless connection with low latency and support for A2DP/AVRCP profiles. Enjoy clear, uninterrupted audio with a transmission range of up to 20 meters. The external antenna enhances signal stability for consistent performance. Experience high-resolution sound with a frequency response range of 10Hz20kHz, signal-to-noise ratio of 110dB, and low distortion of 0.02%. Ideal for music enthusiasts seeking superior audio quality and flexible connectivity options. Item Name: Adapter Material: ABS Frequency Response Range: 10Hz20kHz Signal-to-Noise Ratio: 110dB Distortion: 0.02% Bluetooth Version: 5.1 Effective Distance: 20 meters Performance Level: HiFi Supported Protocols: A2DP, AVRCP Supported USB Disk Formats: WAV, WMA, APE, FLAC, MP3, etc. Features: Multiple Interfaces, Plug-and-Play, Lossless Transmission Dimensions: Length: 9cm (3.54") Width: 5cm (1.97") Height: 2cm (0.79") Note: Due to lighting and screen settings, the product color may vary slightly from images. Slight dimensional variations may occur due to manual measurement. Package Includes: 1 x Adapter