AGPtEK New Version Adjustable Sport Running Jogging Armband for AGPTEK A02/ A20/ A01(S/T)/ A22/ A29/ C05/ M07/ C3 MP3 Player Allowing for the AGPTEK A02/ A20/ A01(S/T)/ A22/ A29/ C05/ M07/ C3 mp3 player to be easily used while running, jogging. Adjustable armband strap; the armband would be suitable for people's arm above 30cm, the longest length of this strap is 77cm. Warm note: this running armband is only suitable for AGPTEK A02/ A20/ A01(S/T)/ A22/ A29/ C05/ M07/ C3/ A07 player.