Product Description: Bluetooth Tube Amplifier HiFi Stereo Receiver Elevate your audio experience with our Bluetooth Tube Amplifier HiFi Stereo Receiver, designed to deliver superior sound quality and versatile functionality. Perfect for use with CD players, computers, and more, this amplifier is a must-have for any audiophile. Dual Input Modes: Enjoy the flexibility of AUX wired and Bluetooth wireless dual input options. Control your audio experience effortlessly with both remote control and button operation, providing convenience and ease of use. Supports Multiple Formats: Play your favorite music files with ease. The U disk and storage card support WAV, FLAC, APE, and other lossless formats, ensuring a soft, warm, and powerful listening experience that is both transparent and durable. Bluetooth 5.0 Reception: Experience stable and high-quality audio with Bluetooth 5.0 reception. The amplifier supports a 44kHz 16bit CD-grade standard, ensuring that your music is delivered with clarity and precision. Three Frequency Adjustment: Customize your sound with the high, mid, and low-frequency independent adjustment knobs. Tailor the audio output to your personal listening preferences for a truly personalized experience. Superior Sound Quality: Equipped with dual audiophile-grade bile tubes (default 6K4), this stereo receiver delivers a soft and warm sound that is both transparent and powerful. The tubes can be replaced and upgraded to explore different sound profiles. 3.5mm Headphone Interface: Connect your headphones easily with the 3.5mm headphone jack. The stereo receiver can function as a bile earphone, and both the RCA output port and the headphone jack can be used simultaneously for versatile audio output options. Transform your home audio setup with the Bluetooth Tube Amplifier HiFi Stereo Receiver, offering exceptional sound quality and versatile connectivity options. Whether you're listening to music, watching movies, or playing games, this amplifier enhances every audio experience.