Description
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- M38 is a low-power Bluetooth design solution. It supports the new Bluetooth 4.2 transmission and two-channel stereo lossless playback. After the module is connected to Bluetooth, it can quickly realize Bluetooth wireless transmission, which is very convenient. In an open environment, the Bluetooth connection distance can reach up to 20 meters.
- Power supply: You can directly use the MICRO USB Android cable 5V to supply power directly, or you can also connect to a 5V power supply or a 3.7V lithium battery. Note that the power supply interface of 5V and 3.7V is different, 5V is connected to 5V and GND, and 3.7V lithium battery is connected to VBAT and GND. The working current is 5V2A. It is recommended to use a 5V2A regulated power supply for better sound quality.
- Support USB sound card, free drive (plug and play). Connect the module to the computer with a USB data cable, and the computer can play music and output it through the module's power amplifier.
- Audio output: Output left and right channel stereo audio signals, which can be connected to two 2-8 ohm and 3-5W speakers respectively, and 4 ohm 5W speakers are recommended for storage.
- Comes with dual 5W power amplifier circuit, you must not use another power amplifier! The outputs of the two power amplifiers cannot be connected in parallel or the negative poles connected together, otherwise the power amplifier chip will be damaged.
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