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!
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