This is a low cost, low consumption, small volume and cost-effective offline speech recognition switch. Direct voice control, no internet connection, no mobile phone required. Voice commands are simple and suitable for all ages. A smart voice chip, responsiveOn-board a high-sensitivity microphone, a 8 ohm 1W speaker and a relay. It can be used for product prototype testing and verification functions, DY's own voice control equipment, and modification of various small appliances. Support custom boot announcement, wake-up word, word, etc.Sensitive recognition, higher recognition rate Support custom boot voice Support setting keywords and wake words Support custom reply languageThe settings can be modified unlimited a variety of real people's pronunciation can be setNo programming required, can be operated by typing, very simple web page settings, easy to understandWorking voltage: 5VRelay control O port: PA25 high level Size: 35x37mmColour:green + blackMaterial:ABS+MetalPackage Contents:1 x Voice Recognition ModuleOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.