ECSiNG 2 Pack 3.7-5V Bluetooth Receiver Module Audio Receiver Amplifier Board Red with Charging Port for Wireless Speaker DIY Sound System

Operation: Turn on the Bluetooth of the mobile phone and scan the device to connect. No driver is required, just plug it in and you can use it. , This product can be Two 2-8 ohm, 3-10W speakers can be connected separately, it is recommended to use 4-ohm 5W 4-ohm 10W speakers and 3. 7 5 V lithium battery. , The product comes with a USB charging port that can be used as a power supply port. , This product has a transmission distance of about 15 meters in an open area and supports automatic reconnection to paired devices and automatic playback of music. , Note: When installing the Bluetooth board, try not to place the Bluetooth antenna close to metal parts to avoid affecting the transmission distance. Do not use dry batteries, power banks, multi-function transformers and other power sources with unstable voltage and current for power supply.