KNACRO 3W+3W Wireless Bluetooth 4.0 Audio Receiver Steady Digital Amplifier Board
Computer USB interface power supply,Charging treasure USB interface can also be powered<BR> Output connected speaker or the speaker, not the amplifier output to use<BR> Quality, reliable, high compatibility<BR> Working current:3W+3W <BR> Mounting:3.0mm <BR> Speaker type:3W*2 4-8ohm<BR> Working voltage:DC 5V<BR> Power Interface: Micro USB holder<BR> PCB Board Size: 42 * 25 * 7.8 mm / 1.67 * 0.99 * 0.3 in (L * W * H) Weight: 5.0g / 0.175oz<BR>