Features • Lossl Signal & Interference Resistance: Enjoy crystal-clear o with a solid aluminum alloy shell designed to minimize signal loss and resist interference, ensuring sound performance • Compact & Portable Design: Measuring just 88mm x 38mm x 38.5mm, this mini device is easy to carry and for on-the-go o control without compromising quality • Versatile RCA Jack & 3.5mm Output: Connect effortlly with various o sources using stereo RCA and 3.5mm outputs, ideal for integrating into your existing o setup • Broad Compatibility with All Devices: ly compatible with DVDs, CDs, TVs, computers, turntables, and more, making it a versatile addition to your o toolkit • Enhanced Equal Sound Circuit: Experience improved o fidelity at low volumes with a circuit that boosts treble and bass, delivering a richer sound range for all your listening needs Features: 1、LOSSL SIGNAL AND INTERFERENCE RESISTANT: This is a stereo switch box with lossl signal, solid aluminum alloy shell with strong interference resistance 2、SMALL AND PORTABLE: Mini stereo o preamplifier poss small size, easy to carry and use. Size is 88mm(L) x 38mm(W) x 38.5mm(H) 3、RCA JACK 3.5MM OUTPUT: This fader input and output are stereo, usually used to control small signal controls, installed between the o source and the preamp or between the preamp and the amplifier, strings in the o loop. Outputs are 3.5mm or RCA jacks 4、WIDELY COMPATIBLE WITH ALL O DEVICES: Fit DVDs, CDs, set top boxes, MP3s, TVs, cell phones, computers, tablets, turntables, sound cards, guitars, basses, electronic musical instruments, game consoles or other devices 5、BETTER EQUAL SOUND CIRCUIT：When playing music at a low volume, feels that the treble is weak and dull, and the bass is small and weak. According to the characteristics of human hearing, the equal sound circuit increases the treble and bass at a low volume, making the sound range wider and better Specification: Item Type: Mini Stereo o Preamplifier Input: 3.5mm Output: 3.5mm Size(LxWxH): Approx. 88 x 38 x 38.5mm / 3.46 x 1.5 x 1.52in Package List: 1 x Mini Stereo o Preamplifier Package List 1 x Mini Stereo Audio Volume Controller