The board uses the typical circuit design of NS4158, using MICRO USB power supply (reserved wire power interface),
it is convenient to use a universal mobile phone charger for its power supply,
resistance devices are standardized patch technology, simple and stable.
It is designed for Bluetooth audio receiver module dedicated interface,
can easily DIY Bluetooth small speakers. The board can be accessed 8Ω, 4Ω or 2Ω speakers,
suitable for full-range speakers or full-range speakers.
Note that this item default not contain Bluetooth Receiver Module.
Parameter:
Supply voltage: DC3.4V-DC5V
Output power: 3.0W (4Ω load), 3.8W (3Ω load), 5.0W (2Ω load)
Package:
1 x Mini Stereo Amplifier Board (not contain other parts)