ITEM NAME:TPA3118 PBTL 60W Mono Digital Audio Power Amplifier Board AMP Module Chip #JT1 Product Description Description: 1pc DC8-24V TPA3118 PBTL 60W Mono Channel Digital Audio Power Amplifier Board 1x60W AMP Module Chip Feature: Using this form, the sound quality is very good. Single chip digital audio amplifier. High performance and low energy consumption. Applicable loudspeaker impedance: 4-8 ohms (8 ohms is the best) Specification: Operating voltage: DC 8-24V Output power: 60W Size: 45*35*12mm/1.77*1.38*0.47'' Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3mm measuring deviation due to manual measurement. Included: 1 X TPA3118 PBTL Mono Digital Amplifier Board.Included: 1 X TPA3118 PBTL Mono Digital Amplifier Board. Output power: 60W. Single chip digital audio amplifier. High performance and low energy consumption. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.