2x6W DC 5V 3.7V Speaker Modified Stereo Bluetooth amplifier board can connected Lithium Battery

This is a 2x6W Bluetooth amplifier board with charge management that can be powered by lithium battery. Small heat production in standby, good stereo quality, suitable for small Bluetooth speakers.

Features: 

• Small standby heating, good-quality stereo, suitable for Bluetooth speakers.
• Output power 6W+6W, two-channel stereo, good sound quality.
• Lithium batteries can be connected, with charge management.
• When using a lithium battery, the charging interface can be charged with a 5-volt power supply or a mobile phone charger to charge a single-cell lithium battery.
• The charge management circuit limits the battery to a maximum voltage of 4.2VDC.

Specifications:

Package Includes:

• 1 x 2x6W DC 5V 3.7V speaker modified Stereo Bluetooth amplifier board

Note : 

• When the sliding switch ON Micro-USB port is the charging port, powered by the lithium battery to work, slide the switch OFF when the Micro-USB port is the power supply port, you can not take lithium battery work.