CA-6928 Bluetooth 5.0 Audio Module 5V Digital Power Channel Amplifier Board Speaker Audio Aplifier Module Stereo Sound Module Features: 1.Compact size 2.Easy to operate 3.Stable performance 4.Strong reception signal 5.Wide application range Specifications: Stable performance, strong signal reception, with a straight-line distance of over 10 meters Input voltage: 5V Output power: 4 3W Product size: 23 * 13.5 * 1mm Bluetooth and power amplifier functions are integrated, and can be used by connecting to the power supply and speaker. It has a small space and high usage, improving the yield rate of production. FAQ: 1: Unable to search for Bluetooth Generally, it is caused by power interference, and the power line must be equipped with a filtering circuit 2: Bluetooth signal too weak Do not wire or cover the Bluetooth module antenna with copper, or there should be no metal shielding around the antenna. 3: Current sound too loud It is generally caused by interference from the power source. It is recommended that the power amplifier cable is not too long, and the Bluetooth ground and power ground should be separated. Package Included: Audio module * 1