Typically uses Class-D amplification to stay cool even during long playback sessions. 📶 Connectivity & Pairing Bl12 A3 Bluetooth Speaker Review - AliExpress
The module generally operates on DC 12V , matching the standard power supply of LED mirrors and shower controllers. bl12-a3 bluetooth
| Feature | BL12-A3 | HC-05 | HC-06 | |----------------|----------------|-----------------|-----------------| | Bluetooth | 5.0 | 2.0 | 2.0 | | Master/Slave | Both (config) | Both | Slave only | | AT commands | Yes | Yes | Limited | | Power (active) | ~10 mA | ~30 mA | ~20 mA | | Price | Low | Medium | Low | Typically uses Class-D amplification to stay cool even
: You will typically hear a chime or sound confirming a successful connection. 2. Technical Specifications bl12-a3 bluetooth