Плата усилителя мощности Bluetooth модуля CT14 Micro 4.2 Stereo 5VF 5W+5W Mini с портом зарядки для перестройки беззвучного звукового ящика.

Плата усилителя мощности Bluetooth модуля CT14 Micro 4.2 Stereo 5VF 5W+5W Mini с портом зарядки для перестройки беззвучного

Instructions for use:

1. Bluetooth version 4.2.

2. Support USB sound card, free drive, plug and play (normal lithium battery power supply).

3. This product has its own dual 5W power amplifier circuit. Do not use another amplifier! The output of the two amplifiers cannot be connected in parallel or the negative poles are connected together, otherwise the power amplifier chip is damaged.

4. Two 2-8 ohm, 3-10W speakers can be connected separately, and 4 ohm 5W and 4 ohm 10W speakers can be used for the push. The output is stereo.

5. The maximum working current is 5V2A. It is powered by a regulated power supply of 5V2A or above, and the sound quality is better!

6. It is recommended to use 3.7V lithium battery (lithium battery needs to have a protection board!) The USB charging port can be used to charge the lithium battery. The USB port can also be used as the power supply port or 5V adapter. You can not use the dry battery, charging treasure, Power supply with unstable voltage and current such as multi-function transformer!

7. When the Bluetooth board is installed, try not to be close to the metal parts, so as not to affect the transmission distance.