CentIoT - PAM8610 2 x 15W - 2 Channels Each 15W Dual Channel Stereo Mini Class D Digital Audio Power Amplifier Board DC 12V transparent Stop bits: 1

Stop bits: 1

which is the factory setting

If the SW does not want to connect the switch

56MHz contactless communication card chip

Full charged :red light light for a long time

CentIoT - PAM8610 2 x 15W - 2 Channels Each 15W Dual Channel Stereo Mini Class D Digital Audio Power Amplifier Board DC 12V transparent Stop bits: 1Brand: CentIoT Color: Black Features: Dual Channel 15W per Channel, Dual panel wiring, properly solve the crosstalk between the ground potential balance and channel wiring SNR: 86%; Total harmonic distortion: 5W 1KHz 8 0. 1%; Frequency range: 20Hz 20KHz; Input impedance: 15K; Output Impedance: 4 8; Operating voltage: DC 7. 5 15V, Recommended voltage: 12 V, Quiescent current: 20 mA, Rated output power: 10 W +10 W (8) Excellent noise suppression in the