Audio decoder and Recoder MP3-WMA-MIDI VS1003B
Specifications
Separate analog, digital, and IO power supply
Serial data and control interface (SPI)
1 headphone and audio output interface
1 microphone for recording, support audio encoding format
1 line input interface; supports MP3 and WAV stream
Audio Stereo Amplifier TPA3110 2X15W
Features:
Amplifier Chip:TPA3110
Output Power:15W x 2
Working Voltage: DC 8-18V
Working Current:
Max:3A
Static state:8mA
Efficiency:≥90%
SNR:100dB
Frequency Range:20Hz-20KHz
Size: 33 x 25 x 3.5mm
Speaker:4-8Ω
Net Weight:about 4g
Bluetooth 4.1 Audio Receiver board XY-BT-Mini
USB powered Universal Micro USB 5V power supply
3.7-5V Supply Pad External 3.7-5V lithium battery power conversion
LED indicator Bluetooth mode long blue light
3.5mm stereo audio interface Standard 3.5mm interface, output stereo sound source, plug in headphones, connect amplifiers and other devices
MP3 Format decoding audio Player
Features:
* Superior sound quality.Onboard 2Wmonoamplifier(5V power of up to 3W) is directlyconnected to the speaker(recommendation 4O3Wspeakers),3.5mm gold plated headphone jackcan connect with headphones or external audio.
Piezo Active Buzzer
5v Active Buzzer Magnetic Long Continous Beep Tone Alarm Ringer 12mm MINI Active Piezo Buzzers
Voice Decoding MT8870 DTMF Module
Specifications
On-board MT8870 frequency decoder chip
On-board audio input interface
On-board LED lights for output state indication
PCB Size: 26.5 x 24.5 mm