Function: 1. Dedicated Operational Amplifiers: Our HiFi dual operational amplifier module features dedicated op-amps, representing some of the most advanced on the market. 2. Beautiful Sound: Experience warm and natural sound with our HiFi dual operational amplifier module for an exceptional audio playback experience. 3. Great Listening Experience: Enjoy a quiet and soothing background with our HiFi dual operational amplifier module, filled with emotion for a new sensory delight. 4. Sound Quality Enhancement: Ideal for HiFi enthusiasts looking to upgrade their device's sound quality in one step. If you need this, it's perfect for you. 5. Great Replacement: This module can upgrade and replace most operational amplifiers on the market, making it perfect for audiofiles to enhance equipment like Opa2604ap, ne5532p, 4558d, lme49720na, and more. Specification: Item Type: HiFi Dual Operational Amplifier Module Model: V4i-S Amplifier Type: Dedicated Audio Number of Amplifier Channels: Dual Operational Amplifier Slew Rate: 2v/s Bandwidth: 5mhz Input Bias Current: 23na Power Supply Quiescent Current: 4mA Operating Temperature: -40C to 85C. Package List: 1 x Dual Operational Amplifier Module