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 both AUX wired and Bluetooth wireless inputs. Control your audio experience effortlessly with both remote control and button options, ensuring convenience and ease of use. Supports Multiple Formats: Play your favorite music files with ease. The amplifier supports U Disk and Storage Card playback, accommodating WAV, FLAC, APE, and other lossless formats. Experience a soft, warm, and powerful sound that enhances your listening pleasure. Bluetooth 5.0 Reception: Benefit from stable and high-quality audio transmission with Bluetooth 5.0 reception. The amplifier supports a 44kHz 16bit CD-grade standard, ensuring crisp and clear sound for all your audio needs. Three Frequency Adjustment: Customize your listening experience with independent high, mid, and low-frequency adjustment knobs. Tailor the sound to your preferences for a truly personalized audio experience. Superior Sound Quality: Featuring 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 and flavors. 3.5mm Headphone Interface: Connect your headphones easily with the 3.5mm headphone jack. The stereo receiver can function as a bile earphone, with simultaneous output available through the RCA port and headphone jack. Designed for those who appreciate high-quality sound and versatile functionality, the Bluetooth Tube Amplifier HiFi Stereo Receiver is the perfect addition to any audio setup. Whether you're listening to music, watching movies, or playing games, this amplifier ensures an immersive and enjoyable experience.