ZK-502L 2X50W Bluetooth 5.0 Power Amplifier Board Digital Audio HiFi Stereo Dual Channel Class D AMP Without Shell

The potentiometer adjusts the volume with a switch for easy control of the volume, making it Perfect for DIY speakers.If it is a metal box, you need to bring out the Bluetooth antenna.
The copper DC connector is used to withstand high current and no heat.
Capacitor 470uf35V solid capacitors ensure power storage and heat dissipation, and stable power supply is a prerequisite for good sound quality.
Free DC head lead, compatible with the input power interface of this product, even if you don't have a DC head adapter or battery, it can be easily wired.
5.0 Bluetooth version, the transmission efficiency is higher, the transmission distance is farther.

Colour: Black
Material: PCB+Plastic+Metal
Precautions for use: The power switch on the board is the standby switch. After the switch is turned off, the machine is in a low-power standby state. To completely turn off the power or unplug the DC plug on the machine for a long time.
Product Name: Dual channel Bluetooth 5.0 power amplifier board
Input voltage: DC5-27V
Bluetooth Version: 5.0
Output impedance: 4~8 ohm Speaker
For Speakers: 30W~200W
Output power: 50W x 2
Audio input: Bluetooth
Number of channels: two channels
Size: 55 x 38 x 17MM
Question and answer:
How to connect to Bluetooth?
Power on the power amplifier, connect the speaker, turn the audio knob blue light to turn on, turn on the phone settings - Bluetooth - search for "BT-WUZHI", and then click the connection, there will be a beep when the connection is successful, this When it is in Bluetooth mode, you can play music. The next time you power on, it will automatically connect with the phone.

Package Contents: B
1 x power amplifier board
1 x DC wire

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.

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