ITEM NAME:TPA3118 BTL Mono Audio Power Amplifier Board Module 1 x 60WDC 12V-24V FcB Bj.1 x TPA3118 BTL Mono Digital Audio Power Amplifier Board Module. Mono digital audio power amplifier chip. Sound quality is very good by using this module. PCB Board Size: 45 35mm. Due to the different display and different light, the picture may not reflect the actual color of the item.