DIY Speaker Kit Loudspeaker Module with Waist Strap

Description: This product takes TDA2822 as its core and uses BTL output. It has high output power, high fidelity and clear voice. The loudspeaker housing is provided with a line input jack (on the side of the housing) and a microphone input jack (above the housing). The mode of power supply can be supplied by a single lithium battery or by an external power supply (switching through a circuit board jumper). The external power supply voltage is 3-9V. When using lithium batteries for power supply, the lithium batteries can be charged through an external power supply socket. The external power supply voltage must be 5V DC when charging. This kit has practical value when it completes the electronic training teaching and the finished product is also very useful. It can be used in the occasions of tour guides'explanation and teachers' classroom teaching. It can also enjoy beautiful music with computers, mobile phones, MP3 and other sound sources. Circuit board size: 80 x 77mm PCB Material: single sided 1.4mm FR-4 sheet Supply voltage: 5-9V LED quantity: 1 3mm LED color: Red Package Included: 1 x DIY Speaker Kit