AC Adapter charger for laptop 24V 4.5A 5.5*2.5mm compatible 2.1mm 108W
COMPREHENSIVE PROTECTIONS:: short-circuit/over-heat/over-pressure and direct current
DC 12-24V Car Stereo AMP Module for Computer Vehicle Auto Audio System DIY Speakers with Volume Knob Double Chips Heatsink
HIGH EFFICIENCY,HIGH POWER,LOW CONSUMPTION,HIGH RESOLUTION AND LOW DISTORTION
NOTE:Power supply cannot be connected to the output interface of the speaker, otherwise the chip will be damaged,Please see the reference picture,hope it can help you