Features:Size:32mm*17mm*8mm(length*width*height)Main chip:LM393, Electret condenser microphoneWorking voltage: DC 4-6VSignal output indicationSingle channel signal outputThe output effective signal is..

100% brand new and high qualityQuantity:1setWeight:23 gColor: as the picture showSize:37mmx41mm/1.46"x1.41"(inch) (approx)The working voltage: DC 3 ~ 5VLoudspeaker: 8, 0.5W Features:1. An easy to..

100% brand new and high qualityQuantity:1setWeight:23 gColor: as the picture showSize:37mmx41mm/1.46"x1.41"(inch) (approx)The working voltage: DC 3 ~ 5VLoudspeaker: 8, 0.5W Features:1. An easy to..

Usage method: In XP or above systems, plug and play, automatically block the microphone of the computer's built-in sound card (some computers can't block it only need to manually switch it once)...

Features:Main chip: LM393, Electret condenser microphoneGreat for Acoustic control light , give sound and light alarm working with Photosensitive sensor ,and sound control,sound detectSignal output in..

Features:1.Voltage:4.5-5.5V2.Current:<40mA3.Digital Interface: 5V TTL level UART interface4.Analog Interface: 3.5mm mono-channel microphone connector + microphone pin interface5.Size: 30mm x 47.5mm..