Features:

1. Low noise
2. Low power consumption
3. Suitable for a wide variety of Electronic products
4. Multi-channel
5. Frequency Range: 50 – 20KHz
6. Microphone sensitivity 56 – 58DB

Features :

1. Non-volatile message storage using patented multi-level storage (MLS)
2. Full range of Record and Playback Durations (40 Seconds to 120 Seconds)
3. 4.0 to 12.0KHz Sampling Frequency provides Industry-Leading Sound Quality
4. Designed for Message Management
5. Single/Multiple messages
6. Low Voltage Operation
7. Package: PDIP, SOIC, Die.

Specifications:

1. Operating Voltage Range: 5V – 5.5V.
2. Max Gain: 24 dB
3. Current Handling Capacity: 8 mA
4. Efficiency: 87 %.
5. Amplifier: IC PAM 8403.
6. Load Can direct drive 4 or 8 ohm small speakers.

Specifications:

1. Signal output Indication
2. Single channel signal output
3. The output effective signal is low level.
4. Main chip: LM393, Electret condenser microphone
5. Working voltage: DC 3.3-5V
6. Induction distance is 0.5m

Specifications:

1. Working voltage: DC 3.3-5V.
2. Signal output indication.
3. The output is digital.
4. Single-channel signal output.
5. With the retaining bolt hole, convenient installation.
6. Output low level and the signal light when there is sound.

Specifications

• Voltage: 4.5-5.5V
• Current: <40mA
• Digital Interface: 5V TTL level for UART interface and GPIO
• Analog Interface: 3.5mm mono-channel microphone connector and microphone pin interfac
• Size: 31mm x 50mm
• Recognition accuracy: 99% (under ideal environment)

Specifications:

1. Input Supply voltage (V)  :2.8 ~ 5.5
2. Current consumption (sleep mode) (µA) :10
3. Sampling frequency (kHz): 6 ~
4. Built 13Bit/DA converter, and 12Bit/PWM output.
5. Support for loading WAV audio formats