Elevate your audio experience with our Bluetooth 4CH HiFi Stereo Amplifier, designed to deliver superior sound quality and versatile connectivity options. This powerful amplifier is perfect for enhancing your home audio setup, whether you're creating a home theater or setting up a small office sound system. 4 Channel Design: This compact and lightweight amplifier features an imported 4-channel chip, engineered with scientific and humane acoustic principles. It supports 2 to 4 speakers, ensuring excellent sound quality. Encased in a premium aluminum alloy shell, it is both sturdy and durable, promising long-lasting performance. Diversified Functions: Equipped with Bluetooth 5.0, this amplifier offers a range of input options including coaxial and optical inputs. Experience high power output with HiFi sound quality, complete with treble and bass adjustments. Enjoy music playback via U disk and Memory Card (not included), making it a versatile addition to your audio setup. Advanced Connectivity: Utilizing the latest Bluetooth version 5.0, this amplifier provides a 30ft operating range, allowing seamless connection to your music streaming devices. It supports connections via Bluetooth, RCA sound cable, USB port, and Memory Card (not included) port, offering flexibility for various audio sources. Optical Coaxial Transmission: Experience lossless SPDIF super premium HiFi optical transmission with this Bluetooth amplifier. Featuring a high-capacity transformer and less than 0.2 percent harmonic distortion, it delivers clear, distortion-free sound, ensuring an immersive audio experience. Multi-Application Use: This receiver amplifier supports connections with multiple sound devices, making it compatible with phones, TVs, computers, and more. Its lossless sound output is ideal for home theaters, audition rooms, HiFi setups, DIY projects, and small offices, providing versatile audio solutions for any environment. Transform your audio experience with this feature-rich Bluetooth amplifier, designed to meet the needs of audiophiles and casual listeners alike. Whether you're upgrading your home theater or setting up a new sound system, this amplifier offers the perfect combination of power, clarity, and connectivity.