Feature:1. ADVANCED DUAL OP AMP: Operational Amplifier is very suitable for enthusiasts to upgrade the standard OPA2604AP NE5532P 4558D LME49720NA, etc. of the original equipment.2. GOOD SOUND QUALITY: V4iD operational amplifier module sound is warm, natural, and mellow, with unique fever gall, and good listening resistance.3. HIGH PERFORMANCE: Current Input Bias: 23mA, Voltage Input Offset: 490V, Slew Rate: 2V/us, Bandwidth: 5MHz, Current Supply: 4mA, Voltage Rating: + 4 to + 18V.4. EASY INSTALLATION: The dual op amp module is installed in line, and the dual in line module (can replace the standard in line DIP8 package).5. APPLICABLE: VV4 dual op amp module can be used in decoders, music players, preamplifiers, headphone power amplifiers, CDs, etc.Specification:Item Type: Operational Amplifier ModuleModel: VV4 (Formerly V4i-D)Material: CopperConversion Rate: 2V, usBandwidth: 5MHzCurrent Input Bias: 23nAVoltage Input Offset: 490uVCurrent Power: 4mARated Voltage: + -4V to + -18VOperating Temperature: -40 to 85Suitable: For Decoders, Music Players, Preamplifiers, Headphone Power Amplifiers, CDs, Etc..Package List:1 x Operational Amplifier Module