2X Mini Preamp Op Amp Module Amplifier Dual Channel NE5532 Preamplifier Tone Board 5 Times Wide Voltage 12-30V
https://www.vogueparade.com/shopping/EN/200327212/4/1005003443906317/2x-mini-preamp-op-amp-module-amplifier-dual-channel-ne5532-preamplifier-tone-board-5-times-wide-voltage-12-30v//