Product name: TDA8954TH two-channel power amplifier boardProduct Type: XR-N252Power amplifier chip: TDA8954THInput voltage: recommended AC dual 24V (up to 30V)Number of channels: left and right dual channelsOutput resistance group: 2-8 ohmsAppearance size: 107 x 93 x 30MMProduct net weight: about 240 gramsMaterial: PCB+metalColor: bluePackage Contents:1 * Audio Amplifier BoardOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.