Ultra Volume: 23*24mm/0.9*0.94"
Excellent noise suppression, you will hear any noise without connecting input audio
Dual-channel stereo, only needed 5V power supply can input 5W+5W power, it can drive 4?, 8? little speaker directly with large output power, enough energy, superior quality, and left right channel volume adjustment
The unique non-LC filter Class-D digital power board, can be used computer USB to charge
Dual-panel wiring, can properly solve the ground potential balance and crosstalk between channels caused by wiring
Super mini design, can be easily placed in a variety of digital product's inside small space
Used machine to weld whole plate
Rated operating voltage is 2.5-5V, the limited operating voltage is 5.5V
Note: The "negative" of left and right channel output port can not be connected together, otherwise it will damage IC, you should connect the speaker before charging.
1x DollaTek Digital Amplifier Board