... 5. Sound machine with high sound quality, can be made with pre-recorded and re-recorded.PRODUCT DETAIL: 2. Style:keychain with sound,photo ... product. 12. Components: PCB,sensor,voice chip,speaker,LED indicator and batteries, more or less for different items ... button a pattern corresponding to a song/sound (sound/light control,spin control,shake control,consumer’s need) 14. Function: melody/music ...