... light as popular promotional gifts 1. Article Namecustomized rubber keychain with flash light or music 2. MaterialIron, ABS, speaker, pcb.3.Process ... : 500 times for normal usecording time:0-270secSound length: 6-60 secondsSound type: voices, songs, melodies, phrases, sentences, messagesOEM item: ideas ... more. Trust us, trust your good eyes. customized rubber keychain with flash light or music