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4 Channel 4Ch Bluetooth BLE Relay Module DC 5V DC 12V 2.4GHz-2.48GHz BT37E04 Command Customization Switch

USD 8.77USD 12.71

4 Channel 4Ch Bluetooth BLE Relay Module DC 5V DC 12V 2.4GHz-2.48GHz BT37E04 Command Customization Switch

Description
Specification
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