Features 1、Transformer Isolation: This amplifier adopts a dedicated transformer isolation, and after a single input, it is transformed into a differential balanced amplifier through a transformer, which has strong anti interference and isolated common ground interference. 2、Excellent Accessories: Equipped with dual operational amplifier NE5532 chip, 10X magnification 20dB gain, high frequency electrolytic capacitor, noise reduction circuit design, low background noise, effective audible gain, and improved sound quality. 3、Headphone Driver: suitable for converting weak signal power into circuit level signal, can directly drive headphone (the headphone output port cannot be used together with other output ports), and supports a maximum impedance of 16Ω. 4、Input and Output: Suitable for common ground isolation scenarios, supporting DVD, CD, set top box, MP3, TV, mobile phone, computer, tablet, microphone, sound card, guitar, bass input, and speaker, subwoofer, reverberator, AV receiver, rear amplifier, headphone output. 5、Portable and Practical: This dual channel audible amplifier has a compact size and lightweight design, making it easy to use and carry. The aluminum alloy shell has high strength, impact resistance, no deformation, and a long service life. Specification Item Type: Isolation Amplifier Material: Aluminum Alloy Chip: NE5532 Dual Op Amp Input Impedance: 600Ω Magnification: 10X (20dB) Background Noise: -93.6dba Dynamic Range: 90dba Total Harmonic Distortion: 0.00328% Channel Separation: -87.7db Size: Approx. 89 x 54 x 38mm / 3.5 x 2.1 x 1.5in Package List 1 x Isolation Amplifier