The amplifier unit uses Lingfeng Acoustics (Taobao), it's dual-channel, supports tuning and TWS pairing

When modifying the battery's positive and negative terminals, do not cut both positive and negative wires at the same time!!!!!

1. It is recommended to apply sound-absorbing cotton inside. I didn't have sound-absorbing cotton, so I used shipping foam

2. Gaps and openings need to be sealed to keep the inside of the enclosure airtight

3. The supports are difficult to remove!!!! Be patient!!!

Configuration as follows

Screws: M3 countersunk*16

Nuts: M3 self-locking nuts

Battery: 3.7v 9000mAH 18650 battery

Connector: PH2.0

There are also two screws for fixing the amplifier board, I don't know the size, they are screws disassembled from a laptop, probably M2. Measure the length of the base yourself before purchasing

For the electronic component configuration, please refer to the pictures

An installation video tutorial will be updated later