CT14 micro 4.2 stereo Bluetooth amplifier board audio module class F 5W 5W with charging DIY modified speakers

Pre-purchase instructions.

Bluetooth module operation: open the phone Bluetooth, scan the device, find "DW-CT14 +" click to connect.

Bluetooth version: This Bluetooth is 4.2 version. Can be compatible with all cell phones and Bluetooth adapters on the market. The transmission distance is about 15 meters in open area. Support automatically connect back to the already paired devices and automatically play music.

Note: This product will automatically shut down after 10 minutes in standby mode, you need to recharge the power on!

Shipping list: motherboard + plug line

Instructions for use.

1. Bluetooth version 4.2

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

3. This product has come with a dual 5W amplifier circuit. Do not connect another amplifier to use! The output of the two amplifiers can not be connected in parallel or the negative terminal together, or damage the amplifier chip.

4. can be connected to two 2-8 Europe, 3-10W speakers, pushing the storage with 4 Europe 5W and 4 Europe 10W speakers. The output is stereo.

5. Maximum operating current 5V2A, use 5V2A or more regulated power supply, better sound quality!

6. 3.7V lithium batteries are recommended (lithium batteries need to be with a protection plate!) Comes with a USB charging port for lithium battery charging, USB port can be used as a power supply or 5V adapter power supply. Can not use dry batteries, rechargeable batteries, multi-function transformers and other voltage, current instability of the power supply!

7. Bluetooth board installation Bluetooth antenna as far as possible not close to metal parts, so as not to affect the transmission distance.

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