... on-off, light sensor, vibration sensor etc.OEM item available: ideas, prototypes, artworks.Passed testing: ISO9001:2008, ... play message or music more than 500 timesMessage available:songs, melody, voice, phrases or any ... Speaker size: 27,36, 40,50mm is available for customer’s choice.Sound duration: 1-340 ... ; third floor is production line and quality control. This will also support and guarantee our ...